212120200020 has 24 divisors (see below), whose sum is σ = 593936560224. Its totient is φ = 56565386656.

The previous prime is 212120200013. The next prime is 212120200043. The reversal of 212120200020 is 20002021212.

212120200020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 212120199969 and 212120200005.

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, 1767668274 + ... + 1767668393.

It is an arithmetic number, because the mean of its divisors is an integer number (24747356676).

Almost surely, 2^212120200020 is an apocalyptic number.

212120200020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212120200020 is an abundant number, since it is smaller than the sum of its proper divisors (381816360204).

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

212120200020 is a wasteful number, since it uses less digits than its factorization.

212120200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3535336679 (or 3535336677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 212120200020 its reverse (20002021212), we get a palindrome (232122221232).

The spelling of 212120200020 in words is "two hundred twelve billion, one hundred twenty million, two hundred thousand, twenty".