213212012920 has 16 divisors (see below), whose sum is σ = 479727029160. Its totient is φ = 85284805152.

The previous prime is 213212012911. The next prime is 213212012927. The reversal of 213212012920 is 29210212312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213212012927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2665150122 + ... + 2665150201.

Almost surely, 2^213212012920 is an apocalyptic number.

213212012920 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213212012920 is an abundant number, since it is smaller than the sum of its proper divisors (266515016240).

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

213212012920 is a wasteful number, since it uses less digits than its factorization.

213212012920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330300334 (or 5330300330 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 213212012920 in words is "two hundred thirteen billion, two hundred twelve million, twelve thousand, nine hundred twenty".