202020002121110 has 64 divisors (see below), whose sum is σ = 369005893401600. Its totient is φ = 79619971170432.

The previous prime is 202020002121089. The next prime is 202020002121127. The reversal of 202020002121110 is 11121200020202.

It is a congruent number.

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, 3241260767 + ... + 3241323093.

It is an arithmetic number, because the mean of its divisors is an integer number (5765717084400).

Almost surely, 2^{202020002121110} is an apocalyptic number.

202020002121110 is a deficient number, since it is larger than the sum of its proper divisors (166985891280490).

202020002121110 is a wasteful number, since it uses less digits than its factorization.

202020002121110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72845.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 202020002121110 its reverse (11121200020202), we get a palindrome (213141202141312).

The spelling of 202020002121110 in words is "two hundred two trillion, twenty billion, two million, one hundred twenty-one thousand, one hundred ten".