212201222122200 has 48 divisors (see below), whose sum is σ = 657823788580680. Its totient is φ = 56586992565760.

The previous prime is 212201222122181. The next prime is 212201222122247. The reversal of 212201222122200 is 2221222102212.

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, 176834351169 + ... + 176834352368.

Almost surely, 2^{212201222122200} is an apocalyptic number.

212201222122200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212201222122200 is an abundant number, since it is smaller than the sum of its proper divisors (445622566458480).

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

212201222122200 is a wasteful number, since it uses less digits than its factorization.

212201222122200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353668703556 (or 353668703547 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 212201222122200 its reverse (2221222102212), we get a palindrome (214422444224412).

The spelling of 212201222122200 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty-two thousand, two hundred".