12510720229 has 10 divisors (see below), whose sum is σ = 14594974630. Its totient is φ = 10723472424.

The previous prime is 12510720179. The next prime is 12510720247. The reversal of 12510720229 is 92202701521.

It can be written as a sum of positive squares in only one way, i.e., 12404836129 + 105884100 = 111377^2 + 10290^2 .

It is not a de Polignac number, because 12510720229 - 2⁹ = 12510719717 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 12510720229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12510720289) 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, 2602914 + ... + 2607715.

It is an arithmetic number, because the mean of its divisors is an integer number (1459497463).

Almost surely, 2^12510720229 is an apocalyptic number.

It is an amenable number.

12510720229 is a deficient number, since it is larger than the sum of its proper divisors (2084254401).

12510720229 is an frugal number, since it uses more digits than its factorization.

12510720229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5210657 (or 5210636 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The spelling of 12510720229 in words is "twelve billion, five hundred ten million, seven hundred twenty thousand, two hundred twenty-nine".