21202100011210 has 64 divisors (see below), whose sum is σ = 41926428299520. Its totient is φ = 7683797721600.

The previous prime is 21202100011151. The next prime is 21202100011273. The reversal of 21202100011210 is 1211000120212.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 24487854 + ... + 25338886.

It is an arithmetic number, because the mean of its divisors is an integer number (655100442180).

Almost surely, 2^{21202100011210} is an apocalyptic number.

21202100011210 is a deficient number, since it is larger than the sum of its proper divisors (20724328288310).

21202100011210 is a wasteful number, since it uses less digits than its factorization.

21202100011210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856783.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21202100011210 its reverse (1211000120212), we get a palindrome (22413100131422).

The spelling of 21202100011210 in words is "twenty-one trillion, two hundred two billion, one hundred million, eleven thousand, two hundred ten".