21300321122 has 32 divisors (see below), whose sum is σ = 34333528320. Its totient is φ = 9875024640.

The previous prime is 21300321113. The next prime is 21300321151. The reversal of 21300321122 is 22112300312.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 21300321122.

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, 1245872 + ... + 1262852.

It is an arithmetic number, because the mean of its divisors is an integer number (1072922760).

Almost surely, 2^21300321122 is an apocalyptic number.

21300321122 is a deficient number, since it is larger than the sum of its proper divisors (13033207198).

21300321122 is a wasteful number, since it uses less digits than its factorization.

21300321122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17546.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21300321122 its reverse (22112300312), we get a palindrome (43412621434).

The spelling of 21300321122 in words is "twenty-one billion, three hundred million, three hundred twenty-one thousand, one hundred twenty-two".