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12233221211 is a prime number
BaseRepresentation
bin10110110010010100…
…00010010001011011
31011120112222000201002
423121022002101123
5200023201034321
65341520215215
7612102443651
oct133112022133
934515860632
1012233221211
115208375182
122454a6a50b
1311cc581043
148409aadd1
154b8e8d20b
hex2d928245b

12233221211 has 2 divisors, whose sum is σ = 12233221212. Its totient is φ = 12233221210.

The previous prime is 12233221201. The next prime is 12233221213. The reversal of 12233221211 is 11212233221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12233221211 is a prime.

Together with 12233221213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12233221213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6116610605 + 6116610606.

It is an arithmetic number, because the mean of its divisors is an integer number (6116610606).

Almost surely, 212233221211 is an apocalyptic number.

12233221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12233221211 is an equidigital number, since it uses as much as digits as its factorization.

12233221211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 20.

Adding to 12233221211 its reverse (11212233221), we get a palindrome (23445454432).

The spelling of 12233221211 in words is "twelve billion, two hundred thirty-three million, two hundred twenty-one thousand, two hundred eleven".