22021111122112 has 28 divisors (see below), whose sum is σ = 43728509586240. Its totient is φ = 11002903982336.

The previous prime is 22021111122079. The next prime is 22021111122119. The reversal of 22021111122112 is 21122111112022.

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 22021111122112.

It is not an unprimeable number, because it can be changed into a prime (22021111122119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 119463103 + ... + 119647294.

Almost surely, 2^{22021111122112} is an apocalyptic number.

It is an amenable number.

22021111122112 is a deficient number, since it is larger than the sum of its proper divisors (21707398464128).

22021111122112 is a wasteful number, since it uses less digits than its factorization.

22021111122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 239111848 (or 239111838 counting only the distinct ones).

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

Adding to 22021111122112 its reverse (21122111112022), we get a palindrome (43143222234134).

The spelling of 22021111122112 in words is "twenty-two trillion, twenty-one billion, one hundred eleven million, one hundred twenty-two thousand, one hundred twelve".