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12101210202 = 232387689929
BaseRepresentation
bin10110100010100100…
…11101000001011010
31011020100120011122110
423101102131001122
5144240402211302
65320442533150
7605610406134
oct132122350132
934210504573
1012101210202
11514a8aa374
1224188071b6
1311ab110113
1482b246054
154ac5b3b6c
hex2d149d05a

12101210202 has 16 divisors (see below), whose sum is σ = 25254699840. Its totient is φ = 3858356832.

The previous prime is 12101210171. The next prime is 12101210221. The reversal of 12101210202 is 20201210121.

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, 43844827 + ... + 43845102.

It is an arithmetic number, because the mean of its divisors is an integer number (1578418740).

Almost surely, 212101210202 is an apocalyptic number.

12101210202 is an abundant number, since it is smaller than the sum of its proper divisors (13153489638).

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

12101210202 is a wasteful number, since it uses less digits than its factorization.

12101210202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87689957.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12101210202 its reverse (20201210121), we get a palindrome (32302420323).

The spelling of 12101210202 in words is "twelve billion, one hundred one million, two hundred ten thousand, two hundred two".

Divisors: 1 2 3 6 23 46 69 138 87689929 175379858 263069787 526139574 2016868367 4033736734 6050605101 12101210202