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122110222220 = 22572417434871
BaseRepresentation
bin111000110111001010…
…1100001111110001100
3102200012001221000011222
41301232111201332030
54000040204102340
6132032513502512
711552001522530
oct1615625417614
9380161830158
10122110222220
1147872045328
121b7ba571a38
13b690443c7c
145ca56d3bc0
15329a38b8b5
hex1c6e561f8c

122110222220 has 96 divisors (see below), whose sum is σ = 294737135616. Its totient is φ = 41627980800.

The previous prime is 122110222189. The next prime is 122110222229. The reversal of 122110222220 is 22222011221.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (122110222229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 25066385 + ... + 25071255.

It is an arithmetic number, because the mean of its divisors is an integer number (3070178496).

Almost surely, 2122110222220 is an apocalyptic number.

122110222220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122110222220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147368567808).

122110222220 is an abundant number, since it is smaller than the sum of its proper divisors (172626913396).

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

122110222220 is a wasteful number, since it uses less digits than its factorization.

122110222220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5871 (or 5869 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 122110222220 its reverse (22222011221), we get a palindrome (144332233441).

The spelling of 122110222220 in words is "one hundred twenty-two billion, one hundred ten million, two hundred twenty-two thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 241 482 743 964 1205 1486 1687 2410 2972 3374 3715 4820 4871 5201 6748 7430 8435 9742 10402 14860 16870 19484 20804 24355 26005 33740 34097 48710 52010 68194 97420 104020 136388 170485 179063 340970 358126 681940 716252 895315 1173911 1253441 1790630 2347822 2506882 3581260 3619153 4695644 5013764 5869555 6267205 7238306 8217377 11739110 12534410 14476612 16434754 18095765 23478220 25068820 25334071 32869508 36191530 41086885 50668142 72383060 82173770 101336284 126670355 164347540 253340710 506681420 872215873 1744431746 3488863492 4361079365 6105511111 8722158730 12211022222 17444317460 24422044444 30527555555 61055111110 122110222220