22111210212112 has 80 divisors (see below), whose sum is σ = 52737296596992. Its totient is φ = 8771828503680.

The previous prime is 22111210212073. The next prime is 22111210212151. The reversal of 22111210212112 is 21121201211122.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (22111210212073) and next prime (22111210212151).

It is a self number, because there is not a number n which added to its sum of digits gives 22111210212112.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138364408 + ... + 138524119.

Almost surely, 2^{22111210212112} is an apocalyptic number.

It is an amenable number.

22111210212112 is an abundant number, since it is smaller than the sum of its proper divisors (30626086384880).

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

22111210212112 is a wasteful number, since it uses less digits than its factorization.

22111210212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276888596 (or 276888590 counting only the distinct ones).

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

Adding to 22111210212112 its reverse (21121201211122), we get a palindrome (43232411423234).

The spelling of 22111210212112 in words is "twenty-two trillion, one hundred eleven billion, two hundred ten million, two hundred twelve thousand, one hundred twelve".