21113210312202 has 32 divisors (see below), whose sum is σ = 42282124128000. Its totient is φ = 7028458976448.

The previous prime is 21113210312171. The next prime is 21113210312203. The reversal of 21113210312202 is 20221301231112.

It is not an unprimeable number, because it can be changed into a prime (21113210312203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13056324 + ... + 14584032.

It is an arithmetic number, because the mean of its divisors is an integer number (1321316379000).

Almost surely, 2^{21113210312202} is an apocalyptic number.

21113210312202 is an abundant number, since it is smaller than the sum of its proper divisors (21168913815798).

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

21113210312202 is a wasteful number, since it uses less digits than its factorization.

21113210312202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1530750.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21113210312202 its reverse (20221301231112), we get a palindrome (41334511543314).

The spelling of 21113210312202 in words is "twenty-one trillion, one hundred thirteen billion, two hundred ten million, three hundred twelve thousand, two hundred two".