22212121110112 has 24 divisors (see below), whose sum is σ = 43751687373576. Its totient is φ = 11100581459712.

The previous prime is 22212121110037. The next prime is 22212121110161. The reversal of 22212121110112 is 21101112121222.

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 22212121110112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 171155853 + ... + 171285580.

It is an arithmetic number, because the mean of its divisors is an integer number (1822986973899).

Almost surely, 2^{22212121110112} is an apocalyptic number.

It is an amenable number.

22212121110112 is a deficient number, since it is larger than the sum of its proper divisors (21539566263464).

22212121110112 is a wasteful number, since it uses less digits than its factorization.

22212121110112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 342443470 (or 342443462 counting only the distinct ones).

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

Adding to 22212121110112 its reverse (21101112121222), we get a palindrome (43313233231334).

It can be divided in two parts, 22212121110 and 112, that added together give a palindrome (22212121222).

The spelling of 22212121110112 in words is "twenty-two trillion, two hundred twelve billion, one hundred twenty-one million, one hundred ten thousand, one hundred twelve".