21300213301122 has 32 divisors (see below), whose sum is σ = 48699223372800. Its totient is φ = 6084147536208.

The previous prime is 21300213301079. The next prime is 21300213301153. The reversal of 21300213301122 is 22110331200312.

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

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, 67661622 + ... + 67975697.

It is an arithmetic number, because the mean of its divisors is an integer number (1521850730400).

Almost surely, 2^{21300213301122} is an apocalyptic number.

21300213301122 is an abundant number, since it is smaller than the sum of its proper divisors (27399010071678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21300213301122 is a wasteful number, since it uses less digits than its factorization.

21300213301122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135641070.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21300213301122 its reverse (22110331200312), we get a palindrome (43410544501434).

The spelling of 21300213301122 in words is "twenty-one trillion, three hundred billion, two hundred thirteen million, three hundred one thousand, one hundred twenty-two".