12256705001 has 2 divisors, whose sum is σ = 12256705002. Its totient is φ = 12256705000.

The previous prime is 12256704959. The next prime is 12256705039. The reversal of 12256705001 is 10050765221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7974311401 + 4282393600 = 89299^2 + 65440^2 .

It is a cyclic number.

It is not a de Polignac number, because 12256705001 - 2³⁰ = 11182963177 is a prime.

It is not a weakly prime, because it can be changed into another prime (12256705081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6128352500 + 6128352501.

It is an arithmetic number, because the mean of its divisors is an integer number (6128352501).

Almost surely, 2^12256705001 is an apocalyptic number.

It is an amenable number.

12256705001 is a deficient number, since it is larger than the sum of its proper divisors (1).

12256705001 is an equidigital number, since it uses as much as digits as its factorization.

12256705001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 29.

The spelling of 12256705001 in words is "twelve billion, two hundred fifty-six million, seven hundred five thousand, one".