21202202001210 has 32 divisors (see below), whose sum is σ = 51352122286080. Its totient is φ = 5602049702208.

The previous prime is 21202202001199. The next prime is 21202202001223. The reversal of 21202202001210 is 1210020220212.

It is a super-2 number, since 2×21202202001210² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21202202001210.

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, 3241923642 + ... + 3241930181.

It is an arithmetic number, because the mean of its divisors is an integer number (1604753821440).

Almost surely, 2^{21202202001210} is an apocalyptic number.

21202202001210 is an abundant number, since it is smaller than the sum of its proper divisors (30149920284870).

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

21202202001210 is a wasteful number, since it uses less digits than its factorization.

21202202001210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6483853942.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 21202202001210 its reverse (1210020220212), we get a palindrome (22412222221422).

The spelling of 21202202001210 in words is "twenty-one trillion, two hundred two billion, two hundred two million, one thousand, two hundred ten".