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112121210202 = 23171099227551
BaseRepresentation
bin110100001101011110…
…0011110010101011010
3101201101220211121201220
41220122330132111122
53314111012211302
6123301402352510
711046316363521
oct1503274362532
9351356747656
10112121210202
11436065557a1
12198911bb736
13a75ab02c81
1455d8bd14b8
152db344e4bc
hex1a1af1e55a

112121210202 has 16 divisors (see below), whose sum is σ = 237433151232. Its totient is φ = 35175281600.

The previous prime is 112121210063. The next prime is 112121210239. The reversal of 112121210202 is 202012121211.

It is a super-2 number, since 2×1121212102022 (a number of 23 digits) contains 22 as substring.

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, 549613674 + ... + 549613877.

It is an arithmetic number, because the mean of its divisors is an integer number (14839571952).

Almost surely, 2112121210202 is an apocalyptic number.

112121210202 is an abundant number, since it is smaller than the sum of its proper divisors (125311941030).

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

112121210202 is a wasteful number, since it uses less digits than its factorization.

112121210202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1099227573.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112121210202 its reverse (202012121211), we get a palindrome (314133331413).

The spelling of 112121210202 in words is "one hundred twelve billion, one hundred twenty-one million, two hundred ten thousand, two hundred two".

Divisors: 1 2 3 6 17 34 51 102 1099227551 2198455102 3297682653 6595365306 18686868367 37373736734 56060605101 112121210202