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12020112222 = 236476914481
BaseRepresentation
bin10110011000111010…
…00101101101011110
31011000200221222010120
423030131011231132
5144104122042342
65304424415410
7603604160646
oct131435055536
934020858116
1012020112222
115109049248
1223b5617566
131197387051
14820575526
154a53e4aec
hex2cc745b5e

12020112222 has 32 divisors (see below), whose sum is σ = 24117606144. Its totient is φ = 3993830400.

The previous prime is 12020112197. The next prime is 12020112227. The reversal of 12020112222 is 22221102021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020112227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2680222 + ... + 2684702.

It is an arithmetic number, because the mean of its divisors is an integer number (753675192).

Almost surely, 212020112222 is an apocalyptic number.

12020112222 is an abundant number, since it is smaller than the sum of its proper divisors (12097493922).

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

12020112222 is a wasteful number, since it uses less digits than its factorization.

12020112222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 12020112222 its reverse (22221102021), we get a palindrome (34241214243).

The spelling of 12020112222 in words is "twelve billion, twenty million, one hundred twelve thousand, two hundred twenty-two".

Divisors: 1 2 3 6 647 691 1294 1382 1941 2073 3882 4146 4481 8962 13443 26886 447077 894154 1341231 2682462 2899207 3096371 5798414 6192742 8697621 9289113 17395242 18578226 2003352037 4006704074 6010056111 12020112222