212111022112112 has 20 divisors (see below), whose sum is σ = 410968205915376. Its totient is φ = 106054710908160.

The previous prime is 212111022112111. The next prime is 212111022112139. The reversal of 212111022112112 is 211211220111212.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212111022112111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 47819348 + ... + 52066419.

Almost surely, 2^{212111022112112} is an apocalyptic number.

It is an amenable number.

212111022112112 is a deficient number, since it is larger than the sum of its proper divisors (198857183803264).

212111022112112 is a wasteful number, since it uses less digits than its factorization.

212111022112112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100018496 (or 100018490 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 212111022112112 its reverse (211211220111212), we get a palindrome (423322242223324).

The spelling of 212111022112112 in words is "two hundred twelve trillion, one hundred eleven billion, twenty-two million, one hundred twelve thousand, one hundred twelve".