210547821132 has 72 divisors (see below), whose sum is σ = 584078406912. Its totient is φ = 63420300000.

The previous prime is 210547821119. The next prime is 210547821163. The reversal of 210547821132 is 231128745012.

210547821132 is a `hidden beast` number, since 2 + 1 + 0 + 547 + 82 + 1 + 1 + 32 = 666.

It is a super-2 number, since 2×210547821132² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

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, 1525744 + ... + 1658007.

It is an arithmetic number, because the mean of its divisors is an integer number (8112200096).

Almost surely, 2^210547821132 is an apocalyptic number.

210547821132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

210547821132 is an abundant number, since it is smaller than the sum of its proper divisors (373530585780).

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

210547821132 is a wasteful number, since it uses less digits than its factorization.

210547821132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3183939 (or 3183934 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 210547821132 in words is "two hundred ten billion, five hundred forty-seven million, eight hundred twenty-one thousand, one hundred thirty-two".