212221110111200 has 36 divisors (see below), whose sum is σ = 518084785060920. Its totient is φ = 84888444044160.

The previous prime is 212221110111193. The next prime is 212221110111211. The reversal of 212221110111200 is 2111011122212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 132638193020 + ... + 132638194619.

It is an arithmetic number, because the mean of its divisors is an integer number (14391244029470).

Almost surely, 2^{212221110111200} is an apocalyptic number.

212221110111200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212221110111200 is an abundant number, since it is smaller than the sum of its proper divisors (305863674949720).

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

212221110111200 is a wasteful number, since it uses less digits than its factorization.

212221110111200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265276387659 (or 265276387646 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 212221110111200 its reverse (2111011122212), we get a palindrome (214332121233412).

The spelling of 212221110111200 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred ten million, one hundred eleven thousand, two hundred".