202112010111220 has 96 divisors (see below), whose sum is σ = 488739841430400. Its totient is φ = 69627103441920.

The previous prime is 202112010111041. The next prime is 202112010111227. The reversal of 202112010111220 is 22111010211202.

It is a junction number, because it is equal to n+sod(n) for n = 202112010111194 and 202112010111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202112010111227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65460765 + ... + 68478724.

It is an arithmetic number, because the mean of its divisors is an integer number (5091040014900).

Almost surely, 2^{202112010111220} is an apocalyptic number.

202112010111220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202112010111220 is an abundant number, since it is smaller than the sum of its proper divisors (286627831319180).

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

202112010111220 is a wasteful number, since it uses less digits than its factorization.

202112010111220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133939566 (or 133939526 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 202112010111220 its reverse (22111010211202), we get a palindrome (224223020322422).

The spelling of 202112010111220 in words is "two hundred two trillion, one hundred twelve billion, ten million, one hundred eleven thousand, two hundred twenty".