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12232122213 = 39974089643
BaseRepresentation
bin10110110010001011…
…10101111101100101
31011120110220012011110
423121011311331211
5200022410402323
65341440455233
7612060215613
oct133105657545
934513805143
1012232122213
115207794513
12245461a519
1311cc287a4c
148407a26b3
154b8d22793
hex2d9175f65

12232122213 has 8 divisors (see below), whose sum is σ = 16325858848. Its totient is φ = 8146566864.

The previous prime is 12232122211. The next prime is 12232122277. The reversal of 12232122213 is 31222123221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12232122213 - 21 = 12232122211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12232122213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232122211) 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, 2041831 + ... + 2047812.

It is an arithmetic number, because the mean of its divisors is an integer number (2040732356).

Almost surely, 212232122213 is an apocalyptic number.

It is an amenable number.

12232122213 is a deficient number, since it is larger than the sum of its proper divisors (4093736635).

12232122213 is an equidigital number, since it uses as much as digits as its factorization.

12232122213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4090643.

The product of its digits is 576, while the sum is 21.

Adding to 12232122213 its reverse (31222123221), we get a palindrome (43454245434).

The spelling of 12232122213 in words is "twelve billion, two hundred thirty-two million, one hundred twenty-two thousand, two hundred thirteen".

Divisors: 1 3 997 2991 4089643 12268929 4077374071 12232122213