202020202012120 has 64 divisors (see below), whose sum is σ = 467804813145120. Its totient is φ = 78472587024384.

The previous prime is 202020202012103. The next prime is 202020202012159. The reversal of 202020202012120 is 21210202020202.

It is a junction number, because it is equal to n+sod(n) for n = 202020202012094 and 202020202012103.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339163729 + ... + 339758848.

Almost surely, 2^{202020202012120} is an apocalyptic number.

202020202012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202020202012120 is an abundant number, since it is smaller than the sum of its proper divisors (265784611133000).

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

202020202012120 is a wasteful number, since it uses less digits than its factorization.

202020202012120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 678922804 (or 678922800 counting only the distinct ones).

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

Adding to 202020202012120 its reverse (21210202020202), we get a palindrome (223230404032322).

The spelling of 202020202012120 in words is "two hundred two trillion, twenty billion, two hundred two million, twelve thousand, one hundred twenty".