212120021112112 has 10 divisors (see below), whose sum is σ = 410982540904748. Its totient is φ = 106060010556048.

The previous prime is 212120021112089. The next prime is 212120021112163. The reversal of 212120021112112 is 211211120021212.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 212120021112112.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6628750659738 + ... + 6628750659769.

Almost surely, 2^{212120021112112} is an apocalyptic number.

It is an amenable number.

212120021112112 is a deficient number, since it is larger than the sum of its proper divisors (198862519792636).

212120021112112 is a wasteful number, since it uses less digits than its factorization.

212120021112112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13257501319515 (or 13257501319509 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 212120021112112 its reverse (211211120021212), we get a palindrome (423331141133324).

The spelling of 212120021112112 in words is "two hundred twelve trillion, one hundred twenty billion, twenty-one million, one hundred twelve thousand, one hundred twelve".