21202020002212 has 96 divisors (see below), whose sum is σ = 43556441886720. Its totient is φ = 8843672448000.

The previous prime is 21202020002173. The next prime is 21202020002231. The reversal of 21202020002212 is 21220002020212.

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, 53658723 + ... + 54052405.

It is an arithmetic number, because the mean of its divisors is an integer number (453712936320).

Almost surely, 2^{21202020002212} is an apocalyptic number.

It is an amenable number.

21202020002212 is an abundant number, since it is smaller than the sum of its proper divisors (22354421884508).

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

21202020002212 is a wasteful number, since it uses less digits than its factorization.

21202020002212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 394121 (or 394119 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 21202020002212 its reverse (21220002020212), we get a palindrome (42422022022424).

The spelling of 21202020002212 in words is "twenty-one trillion, two hundred two billion, twenty million, two thousand, two hundred twelve".