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122213211112020 = 22357393721739061
BaseRepresentation
bin11011110010011011111011…
…000010010000001001010100
3121000201110122210221121010010
4123302123323002100021110
5112004320124021041040
61111531550224000220
734512420205221630
oct3362337302201124
9530643583847103
10122213211112020
1135a39371643196
12118598a5160070
13532686c029c52
142227218401dc0
15e1e0a580ae80
hex6f26fb090254

122213211112020 has 96 divisors (see below), whose sum is σ = 391083798018816. Its totient is φ = 27934339507200.

The previous prime is 122213211111977. The next prime is 122213211112049. The reversal of 122213211112020 is 20211112312221.

It is a super-2 number, since 2×1222132111120202 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164993290 + ... + 165732350.

It is an arithmetic number, because the mean of its divisors is an integer number (4073789562696).

Almost surely, 2122213211112020 is an apocalyptic number.

122213211112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122213211112020 is an abundant number, since it is smaller than the sum of its proper divisors (268870586906796).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122213211112020 is a wasteful number, since it uses less digits than its factorization.

122213211112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132801 (or 1132799 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 122213211112020 its reverse (20211112312221), we get a palindrome (142424323424241).

The spelling of 122213211112020 in words is "one hundred twenty-two trillion, two hundred thirteen billion, two hundred eleven million, one hundred twelve thousand, twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 393721 739061 787442 1181163 1478122 1574884 1968605 2217183 2362326 2756047 2956244 3695305 3937210 4434366 4724652 5173427 5512094 5905815 7390610 7874420 8268141 8868732 10346854 11024188 11085915 11811630 13780235 14781220 15520281 16536282 20693708 22171830 23623260 25867135 27560470 31040562 33072564 41340705 44343660 51734270 55120940 62081124 77601405 82681410 103468540 155202810 165362820 310405620 290983835981 581967671962 872951507943 1163935343924 1454919179905 1745903015886 2036886851867 2909838359810 3491806031772 4073773703734 4364757539715 5819676719620 6110660555601 8147547407468 8729515079430 10184434259335 12221321111202 17459030158860 20368868518670 24442642222404 30553302778005 40737737037340 61106605556010 122213211112020