21321112211202 has 16 divisors (see below), whose sum is σ = 42897567085632. Its totient is φ = 7064480293200.

The previous prime is 21321112211117. The next prime is 21321112211213. The reversal of 21321112211202 is 20211221112312.

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, 10639276549 + ... + 10639278552.

It is an arithmetic number, because the mean of its divisors is an integer number (2681097942852).

Almost surely, 2^{21321112211202} is an apocalyptic number.

21321112211202 is an abundant number, since it is smaller than the sum of its proper divisors (21576454874430).

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

21321112211202 is a wasteful number, since it uses less digits than its factorization.

21321112211202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21278555273.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 21321112211202 its reverse (20211221112312), we get a palindrome (41532333323514).

The spelling of 21321112211202 in words is "twenty-one trillion, three hundred twenty-one billion, one hundred twelve million, two hundred eleven thousand, two hundred two".