10012445121 has 16 divisors (see below), whose sum is σ = 15263740800. Its totient is φ = 5718891648.

The previous prime is 10012445101. The next prime is 10012445153. The reversal of 10012445121 is 12154421001.

It is not a de Polignac number, because 10012445121 - 2⁵ = 10012445089 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10012445101) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 54756 + ... + 151733.

It is an arithmetic number, because the mean of its divisors is an integer number (953983800).

Almost surely, 2^10012445121 is an apocalyptic number.

It is an amenable number.

10012445121 is a deficient number, since it is larger than the sum of its proper divisors (5251295679).

10012445121 is a wasteful number, since it uses less digits than its factorization.

10012445121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208808.

The product of its (nonzero) digits is 320, while the sum is 21.

Adding to 10012445121 its reverse (12154421001), we get a palindrome (22166866122).

The spelling of 10012445121 in words is "ten billion, twelve million, four hundred forty-five thousand, one hundred twenty-one".