210021212232 has 96 divisors (see below), whose sum is σ = 635249422080. Its totient is φ = 64621903680.

The previous prime is 210021212227. The next prime is 210021212239. The reversal of 210021212232 is 232212120012.

210021212232 is a `hidden beast` number, since 210 + 0 + 212 + 12 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (210021212239) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4129944 + ... + 4180487.

It is an arithmetic number, because the mean of its divisors is an integer number (6617181480).

Almost surely, 2^210021212232 is an apocalyptic number.

It is an amenable number.

210021212232 is an abundant number, since it is smaller than the sum of its proper divisors (425228209848).

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

210021212232 is a wasteful number, since it uses less digits than its factorization.

210021212232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8310465 (or 8310449 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 210021212232 its reverse (232212120012), we get a palindrome (442233332244).

The spelling of 210021212232 in words is "two hundred ten billion, twenty-one million, two hundred twelve thousand, two hundred thirty-two".