21322545122 has 16 divisors (see below), whose sum is σ = 32374998432. Its totient is φ = 10530925440.

The previous prime is 21322545113. The next prime is 21322545143. The reversal of 21322545122 is 22154522312.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1524722 + ... + 1538642.

It is an arithmetic number, because the mean of its divisors is an integer number (2023437402).

Almost surely, 2^21322545122 is an apocalyptic number.

21322545122 is a deficient number, since it is larger than the sum of its proper divisors (11052453310).

21322545122 is a wasteful number, since it uses less digits than its factorization.

21322545122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23233.

The product of its digits is 9600, while the sum is 29.

The spelling of 21322545122 in words is "twenty-one billion, three hundred twenty-two million, five hundred forty-five thousand, one hundred twenty-two".