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12101222202 = 2313115395957
BaseRepresentation
bin10110100010100100…
…11111111100111010
31011020100120210002220
423101102133330322
5144240403102302
65320443104510
7605610456126
oct132122377472
934210523086
1012101222202
11514a908393
122418812136
1311ab115714
1482b24a586
154ac5b74bc
hex2d149ff3a

12101222202 has 16 divisors (see below), whose sum is σ = 24387197472. Its totient is φ = 4002948560.

The previous prime is 12101222173. The next prime is 12101222209. The reversal of 12101222202 is 20222210121.

It is not an unprimeable number, because it can be changed into a prime (12101222209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7697193 + ... + 7698764.

It is an arithmetic number, because the mean of its divisors is an integer number (1524199842).

Almost surely, 212101222202 is an apocalyptic number.

12101222202 is an abundant number, since it is smaller than the sum of its proper divisors (12285975270).

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

12101222202 is a wasteful number, since it uses less digits than its factorization.

12101222202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15396093.

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

Adding to 12101222202 its reverse (20222210121), we get a palindrome (32323432323).

The spelling of 12101222202 in words is "twelve billion, one hundred one million, two hundred twenty-two thousand, two hundred two".

Divisors: 1 2 3 6 131 262 393 786 15395957 30791914 46187871 92375742 2016870367 4033740734 6050611101 12101222202