12499952002001 has 4 divisors (see below), whose sum is σ = 12500906720052. Its totient is φ = 12498997283952.

The previous prime is 12499952001983. The next prime is 12499952002009. The reversal of 12499952002001 is 10020025999421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 11204577960976 + 1295374041025 = 3347324^2 + 1138145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12499952002001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12499952002009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 477339386 + ... + 477365571.

It is an arithmetic number, because the mean of its divisors is an integer number (3125226680013).

Almost surely, 2^{12499952002001} is an apocalyptic number.

It is an amenable number.

12499952002001 is a deficient number, since it is larger than the sum of its proper divisors (954718051).

12499952002001 is an equidigital number, since it uses as much as digits as its factorization.

12499952002001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954718050.

The product of its (nonzero) digits is 116640, while the sum is 44.

The spelling of 12499952002001 in words is "twelve trillion, four hundred ninety-nine billion, nine hundred fifty-two million, two thousand, one".