21625103122 has 32 divisors (see below), whose sum is σ = 37433601792. Its totient is φ = 9177552384.

The previous prime is 21625103083. The next prime is 21625103153. The reversal of 21625103122 is 22130152612.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1929198 + ... + 1940374.

It is an arithmetic number, because the mean of its divisors is an integer number (1169800056).

Almost surely, 2^21625103122 is an apocalyptic number.

21625103122 is a deficient number, since it is larger than the sum of its proper divisors (15808498670).

21625103122 is a wasteful number, since it uses less digits than its factorization.

21625103122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12522.

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 21625103122 its reverse (22130152612), we get a palindrome (43755255734).

The spelling of 21625103122 in words is "twenty-one billion, six hundred twenty-five million, one hundred three thousand, one hundred twenty-two".