22121310003 has 16 divisors (see below), whose sum is σ = 31902652320. Its totient is φ = 13553662464.

The previous prime is 22121309989. The next prime is 22121310011. The reversal of 22121310003 is 30001312122.

It is not a de Polignac number, because 22121310003 - 2¹⁴ = 22121293619 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22121310083) 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, 1229526 + ... + 1247387.

It is an arithmetic number, because the mean of its divisors is an integer number (1993915770).

Almost surely, 2^22121310003 is an apocalyptic number.

22121310003 is a deficient number, since it is larger than the sum of its proper divisors (9781342317).

22121310003 is a wasteful number, since it uses less digits than its factorization.

22121310003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477158.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 22121310003 its reverse (30001312122), we get a palindrome (52122622125).

The spelling of 22121310003 in words is "twenty-two billion, one hundred twenty-one million, three hundred ten thousand, three".