10621251401 has 4 divisors (see below), whose sum is σ = 10638749952. Its totient is φ = 10603752852.

The previous prime is 10621251391. The next prime is 10621251467. The reversal of 10621251401 is 10415212601.

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 a cyclic number.

It is not a de Polignac number, because 10621251401 - 2³⁰ = 9547509577 is a prime.

It is a super-2 number, since 2×10621251401² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10621251481) 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, 8748365 + ... + 8749578.

It is an arithmetic number, because the mean of its divisors is an integer number (2659687488).

Almost surely, 2^10621251401 is an apocalyptic number.

It is an amenable number.

10621251401 is a deficient number, since it is larger than the sum of its proper divisors (17498551).

10621251401 is an equidigital number, since it uses as much as digits as its factorization.

10621251401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17498550.

The product of its (nonzero) digits is 480, while the sum is 23.

The spelling of 10621251401 in words is "ten billion, six hundred twenty-one million, two hundred fifty-one thousand, four hundred one".