212100011010120 has 32 divisors (see below), whose sum is σ = 636300033030720. Its totient is φ = 56560002936000.

The previous prime is 212100011010073. The next prime is 212100011010149. The reversal of 212100011010120 is 21010110001212.

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 = 212100011010096 and 212100011010105.

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, 883750045756 + ... + 883750045995.

It is an arithmetic number, because the mean of its divisors is an integer number (19884376032210).

Almost surely, 2^{212100011010120} is an apocalyptic number.

212100011010120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212100011010120 is an abundant number, since it is smaller than the sum of its proper divisors (424200022020600).

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

212100011010120 is a wasteful number, since it uses less digits than its factorization.

212100011010120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1767500091765 (or 1767500091761 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 212100011010120 its reverse (21010110001212), we get a palindrome (233110121011332).

The spelling of 212100011010120 in words is "two hundred twelve trillion, one hundred billion, eleven million, ten thousand, one hundred twenty".