12921752001 has 4 divisors (see below), whose sum is σ = 17229002672. Its totient is φ = 8614501332.

The previous prime is 12921751981. The next prime is 12921752027. The reversal of 12921752001 is 10025712921.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 12921752001 - 2⁹ = 12921751489 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 12921752001.

It is not an unprimeable number, because it can be changed into a prime (12921752101) 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, 2153625331 + ... + 2153625336.

It is an arithmetic number, because the mean of its divisors is an integer number (4307250668).

Almost surely, 2^12921752001 is an apocalyptic number.

It is an amenable number.

12921752001 is a deficient number, since it is larger than the sum of its proper divisors (4307250671).

12921752001 is an equidigital number, since it uses as much as digits as its factorization.

12921752001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4307250670.

The product of its (nonzero) digits is 2520, while the sum is 30.

The spelling of 12921752001 in words is "twelve billion, nine hundred twenty-one million, seven hundred fifty-two thousand, one".