202010112121020 has 96 divisors (see below), whose sum is σ = 646738292702208. Its totient is φ = 46151887491072.

The previous prime is 202010112121007. The next prime is 202010112121033. The reversal of 202010112121020 is 20121211010202.

It is an interprime number because it is at equal distance from previous prime (202010112121007) and next prime (202010112121033).

It is a Harshad number since it is a multiple of its sum of digits (15).

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, 112926184 + ... + 114701103.

It is an arithmetic number, because the mean of its divisors is an integer number (6736857215648).

Almost surely, 2^{202010112121020} is an apocalyptic number.

202010112121020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202010112121020 is an abundant number, since it is smaller than the sum of its proper divisors (444728180581188).

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

202010112121020 is a wasteful number, since it uses less digits than its factorization.

202010112121020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 227629419 (or 227629417 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 202010112121020 its reverse (20121211010202), we get a palindrome (222131323131222).

The spelling of 202010112121020 in words is "two hundred two trillion, ten billion, one hundred twelve million, one hundred twenty-one thousand, twenty".