212010311220 has 24 divisors (see below), whose sum is σ = 593628871584. Its totient is φ = 56536082976.

The previous prime is 212010311147. The next prime is 212010311251. The reversal of 212010311220 is 22113010212.

212010311220 is digitally balanced in base 2, 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 (15).

It is a self number, because there is not a number n which added to its sum of digits gives 212010311220.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766752534 + ... + 1766752653.

It is an arithmetic number, because the mean of its divisors is an integer number (24734536316).

Almost surely, 2^212010311220 is an apocalyptic number.

212010311220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010311220 is an abundant number, since it is smaller than the sum of its proper divisors (381618560364).

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

212010311220 is a wasteful number, since it uses less digits than its factorization.

212010311220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533505199 (or 3533505197 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 212010311220 its reverse (22113010212), we get a palindrome (234123321432).

The spelling of 212010311220 in words is "two hundred twelve billion, ten million, three hundred eleven thousand, two hundred twenty".