212101112020 has 24 divisors (see below), whose sum is σ = 509042669184. Its totient is φ = 72720381216.

The previous prime is 212101112011. The next prime is 212101112053. The reversal of 212101112020 is 20211101212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 757503832 + ... + 757504111.

It is an arithmetic number, because the mean of its divisors is an integer number (21210111216).

Almost surely, 2^212101112020 is an apocalyptic number.

212101112020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212101112020 is an abundant number, since it is smaller than the sum of its proper divisors (296941557164).

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

212101112020 is a wasteful number, since it uses less digits than its factorization.

212101112020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1515007959 (or 1515007957 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 212101112020 its reverse (20211101212), we get a palindrome (232312213232).

The spelling of 212101112020 in words is "two hundred twelve billion, one hundred one million, one hundred twelve thousand, twenty".