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12210122313 = 321779804721
BaseRepresentation
bin10110101111100011…
…11010111001001001
31011111221111110222100
423113301322321021
5200001242403223
65335333144013
7611402220144
oct132761727111
934457443870
1012210122313
1151a6328684
12244918b009
1311c785425c
1483b8b705b
154b6e29043
hex2d7c7ae49

12210122313 has 12 divisors (see below), whose sum is σ = 18674304948. Its totient is φ = 7661253120.

The previous prime is 12210122257. The next prime is 12210122377. The reversal of 12210122313 is 31322101221.

It can be written as a sum of positive squares in 2 ways, for example, as 8769947904 + 3440174409 = 93648^2 + 58653^2 .

It is not a de Polignac number, because 12210122313 - 29 = 12210121801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210122413) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39902208 + ... + 39902513.

It is an arithmetic number, because the mean of its divisors is an integer number (1556192079).

Almost surely, 212210122313 is an apocalyptic number.

It is an amenable number.

12210122313 is a deficient number, since it is larger than the sum of its proper divisors (6464182635).

12210122313 is a wasteful number, since it uses less digits than its factorization.

12210122313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79804744 (or 79804741 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 12210122313 its reverse (31322101221), we get a palindrome (43532223534).

The spelling of 12210122313 in words is "twelve billion, two hundred ten million, one hundred twenty-two thousand, three hundred thirteen".

Divisors: 1 3 9 17 51 153 79804721 239414163 718242489 1356680257 4070040771 12210122313