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122212020222 = 232175310317309
BaseRepresentation
bin111000111010001100…
…1110110111111111110
3102200110011110212210100
41301310121312333332
54000242234121342
6132050551421530
711554346013645
oct1616431667776
9380404425710
10122212020222
1147914554706
121b8286848a6
13b6a8566c86
145cb503235c
1532a4298e4c
hex1c74676ffe

122212020222 has 96 divisors (see below), whose sum is σ = 285974919360. Its totient is φ = 37575982080.

The previous prime is 122212020211. The next prime is 122212020247. The reversal of 122212020222 is 222020212221.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 122212020195 and 122212020204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 16717104 + ... + 16724412.

It is an arithmetic number, because the mean of its divisors is an integer number (2978905410).

Almost surely, 2122212020222 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122212020222, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142987459680).

122212020222 is an abundant number, since it is smaller than the sum of its proper divisors (163762899138).

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

122212020222 is a wasteful number, since it uses less digits than its factorization.

122212020222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8418 (or 8415 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 122212020222 its reverse (222020212221), we get a palindrome (344232232443).

The spelling of 122212020222 in words is "one hundred twenty-two billion, two hundred twelve million, twenty thousand, two hundred twenty-two".

Divisors: 1 2 3 6 9 17 18 34 51 53 102 106 153 159 306 318 477 901 954 1031 1802 2062 2703 3093 5406 6186 7309 8109 9279 14618 16218 17527 18558 21927 35054 43854 52581 54643 65781 105162 109286 124253 131562 157743 163929 248506 315486 327858 372759 387377 491787 745518 774754 928931 983574 1118277 1162131 1857862 2236554 2324262 2786793 3486393 5573586 6585409 6972786 7535579 8360379 13170818 15071158 16720758 19756227 22606737 39512454 45213474 59268681 67820211 118537362 128104843 135640422 256209686 384314529 399385687 768629058 798771374 1152943587 1198157061 2305887174 2396314122 3594471183 6789556679 7188942366 13579113358 20368670037 40737340074 61106010111 122212020222