212112022020 has 48 divisors (see below), whose sum is σ = 599169553920. Its totient is φ = 56062644736.

The previous prime is 212112022013. The next prime is 212112022049. The reversal of 212112022020 is 20220211212.

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

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, 15635700 + ... + 15649259.

It is an arithmetic number, because the mean of its divisors is an integer number (12482699040).

Almost surely, 2^212112022020 is an apocalyptic number.

212112022020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212112022020 is an abundant number, since it is smaller than the sum of its proper divisors (387057531900).

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

212112022020 is a wasteful number, since it uses less digits than its factorization.

212112022020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31285084 (or 31285082 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 212112022020 its reverse (20220211212), we get a palindrome (232332233232).

It can be divided in two parts, 21211 and 2022020, that added together give a triangular number (2043231 = T₂₀₂₁).

The spelling of 212112022020 in words is "two hundred twelve billion, one hundred twelve million, twenty-two thousand, twenty".