210231213100 has 72 divisors (see below), whose sum is σ = 470859238080. Its totient is φ = 81433197120.

The previous prime is 210231213089. The next prime is 210231213113. The reversal of 210231213100 is 1312132012.

It is a super-2 number, since 2×210231213100² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 129387 + ... + 661213.

It is an arithmetic number, because the mean of its divisors is an integer number (6539711640).

Almost surely, 2^210231213100 is an apocalyptic number.

210231213100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 210231213100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (235429619040).

210231213100 is an abundant number, since it is smaller than the sum of its proper divisors (260628024980).

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

210231213100 is a wasteful number, since it uses less digits than its factorization.

210231213100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531967 (or 531960 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 210231213100 its reverse (1312132012), we get a palindrome (211543345112).

The spelling of 210231213100 in words is "two hundred ten billion, two hundred thirty-one million, two hundred thirteen thousand, one hundred".