202012112020 has 24 divisors (see below), whose sum is σ = 424276791624. Its totient is φ = 80795062656.

The previous prime is 202012112017. The next prime is 202012112083. The reversal of 202012112020 is 20211210202.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 149352877444 + 52659234576 = 386462^2 + 229476^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440887 + ... + 773566.

It is an arithmetic number, because the mean of its divisors is an integer number (17678199651).

Almost surely, 2^202012112020 is an apocalyptic number.

202012112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202012112020 is an abundant number, since it is smaller than the sum of its proper divisors (222264679604).

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

202012112020 is a wasteful number, since it uses less digits than its factorization.

202012112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1222779 (or 1222777 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 202012112020 its reverse (20211210202), we get a palindrome (222223322222).

The spelling of 202012112020 in words is "two hundred two billion, twelve million, one hundred twelve thousand, twenty".