212113311200 has 144 divisors (see below), whose sum is σ = 626607957024. Its totient is φ = 68446617600.

The previous prime is 212113311169. The next prime is 212113311227. The reversal of 212113311200 is 2113311212.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

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, 1018841 + ... + 1209240.

It is an arithmetic number, because the mean of its divisors is an integer number (4351444146).

Almost surely, 2^212113311200 is an apocalyptic number.

212113311200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212113311200 is an abundant number, since it is smaller than the sum of its proper divisors (414494645824).

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

212113311200 is a wasteful number, since it uses less digits than its factorization.

212113311200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2228125 (or 2228112 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212113311200 its reverse (2113311212), we get a palindrome (214226622412).

The spelling of 212113311200 in words is "two hundred twelve billion, one hundred thirteen million, three hundred eleven thousand, two hundred".