212221120211012 has 48 divisors (see below), whose sum is σ = 419261687760384. Its totient is φ = 93119599680000.

The previous prime is 212221120210991. The next prime is 212221120211059. The reversal of 212221120211012 is 210112021122212.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 193452203 + ... + 194546130.

It is an arithmetic number, because the mean of its divisors is an integer number (8734618495008).

Almost surely, 2^{212221120211012} is an apocalyptic number.

212221120211012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212221120211012 is a deficient number, since it is larger than the sum of its proper divisors (207040567549372).

212221120211012 is a wasteful number, since it uses less digits than its factorization.

212221120211012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 387998780 (or 387998778 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212221120211012 its reverse (210112021122212), we get a palindrome (422333141333224).

The spelling of 212221120211012 in words is "two hundred twelve trillion, two hundred twenty-one billion, one hundred twenty million, two hundred eleven thousand, twelve".