202020212120 has 64 divisors (see below), whose sum is σ = 459815257440. Its totient is φ = 79873920000.

The previous prime is 202020212089. The next prime is 202020212131. The reversal of 202020212120 is 21212020202.

It is a super-2 number, since 2×202020212120² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 202020212095 and 202020212104.

It is a congruent number.

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, 2386439 + ... + 2469641.

Almost surely, 2^202020212120 is an apocalyptic number.

202020212120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020212120 is an abundant number, since it is smaller than the sum of its proper divisors (257795045320).

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

202020212120 is a wasteful number, since it uses less digits than its factorization.

202020212120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83916 (or 83912 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 202020212120 its reverse (21212020202), we get a palindrome (223232232322).

The spelling of 202020212120 in words is "two hundred two billion, twenty million, two hundred twelve thousand, one hundred twenty".