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12210323211 = 34150744731
BaseRepresentation
bin10110101111100101…
…01011111100001011
31011111221212200120000
423113302223330023
5200001320320321
65335341334043
7611404014642
oct132762537413
934457780500
1012210323211
1151a6455609
122449267323
1311c78c4828
1483b92a359
154b6e68826
hex2d7cabf0b

12210323211 has 10 divisors (see below), whose sum is σ = 18240112572. Its totient is φ = 8140215420.

The previous prime is 12210323149. The next prime is 12210323231. The reversal of 12210323211 is 11232301221.

12210323211 is a `hidden beast` number, since 122 + 10 + 323 + 211 = 666.

It is not a de Polignac number, because 12210323211 - 211 = 12210321163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12210323231) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 75372285 + ... + 75372446.

Almost surely, 212210323211 is an apocalyptic number.

12210323211 is a deficient number, since it is larger than the sum of its proper divisors (6029789361).

12210323211 is an equidigital number, since it uses as much as digits as its factorization.

12210323211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150744743 (or 150744734 counting only the distinct ones).

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

Adding to 12210323211 its reverse (11232301221), we get a palindrome (23442624432).

The spelling of 12210323211 in words is "twelve billion, two hundred ten million, three hundred twenty-three thousand, two hundred eleven".

Divisors: 1 3 9 27 81 150744731 452234193 1356702579 4070107737 12210323211