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12102020202 = 2317311658979
BaseRepresentation
bin10110100010101011…
…00010110001101010
31011020102002022202110
423101111202301222
5144241104121302
65320512143150
7605620321506
oct132125426152
934212068673
1012102020202
115150302998
122418b37ab6
1311ab3349cc
1482b3b7306
154ac6c3b6c
hex2d1562c6a

12102020202 has 16 divisors (see below), whose sum is σ = 24343950240. Its totient is φ = 4010688432.

The previous prime is 12102020149. The next prime is 12102020221. The reversal of 12102020202 is 20202020121.

It is a super-2 number, since 2×121020202022 (a number of 21 digits) contains 22 as substring.

12102020202 is a modest number, since divided by 20202 gives 12102 as remainder.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5828452 + ... + 5830527.

It is an arithmetic number, because the mean of its divisors is an integer number (1521496890).

Almost surely, 212102020202 is an apocalyptic number.

12102020202 is an abundant number, since it is smaller than the sum of its proper divisors (12241930038).

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

12102020202 is a wasteful number, since it uses less digits than its factorization.

12102020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11659157.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12102020202 its reverse (20202020121), we get a palindrome (32304040323).

The spelling of 12102020202 in words is "twelve billion, one hundred two million, twenty thousand, two hundred two".

Divisors: 1 2 3 6 173 346 519 1038 11658979 23317958 34976937 69953874 2017003367 4034006734 6051010101 12102020202