210939211020 has 24 divisors (see below), whose sum is σ = 590629791024. Its totient is φ = 56250456256.

The previous prime is 210939210983. The next prime is 210939211027. The reversal of 210939211020 is 20112939012.

210939211020 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 (30).

It is not an unprimeable number, because it can be changed into a prime (210939211027) by changing a digit.

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, 1757826699 + ... + 1757826818.

It is an arithmetic number, because the mean of its divisors is an integer number (24609574626).

Almost surely, 2^210939211020 is an apocalyptic number.

210939211020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210939211020 is an abundant number, since it is smaller than the sum of its proper divisors (379690580004).

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

210939211020 is a wasteful number, since it uses less digits than its factorization.

210939211020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3515653529 (or 3515653527 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 30.

The spelling of 210939211020 in words is "two hundred ten billion, nine hundred thirty-nine million, two hundred eleven thousand, twenty".