212221002111200 has 72 divisors (see below), whose sum is σ = 520054425042768. Its totient is φ = 84565631175680.

The previous prime is 212221002111199. The next prime is 212221002111221. The reversal of 212221002111200 is 2111200122212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 504117077 + ... + 504537876.

It is an arithmetic number, because the mean of its divisors is an integer number (7222978125594).

Almost surely, 2^{212221002111200} is an apocalyptic number.

212221002111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212221002111200 is an abundant number, since it is smaller than the sum of its proper divisors (307833422931568).

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

212221002111200 is a wasteful number, since it uses less digits than its factorization.

212221002111200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1008655236 (or 1008655223 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212221002111200 its reverse (2111200122212), we get a palindrome (214332202233412).

The spelling of 212221002111200 in words is "two hundred twelve trillion, two hundred twenty-one billion, two million, one hundred eleven thousand, two hundred".