22222111222112 has 24 divisors (see below), whose sum is σ = 43750087781400. Its totient is φ = 11110977817344.

The previous prime is 22222111222079. The next prime is 22222111222117. The reversal of 22222111222112 is 21122211122222.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22222111222117) 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, 2355839 + ... + 7070657.

It is an arithmetic number, because the mean of its divisors is an integer number (1822920324225).

Almost surely, 2^{22222111222112} is an apocalyptic number.

It is an amenable number.

22222111222112 is a deficient number, since it is larger than the sum of its proper divisors (21527976559288).

22222111222112 is a wasteful number, since it uses less digits than its factorization.

22222111222112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4862118 (or 4862110 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

Adding to 22222111222112 its reverse (21122211122222), we get a palindrome (43344322344334).

The spelling of 22222111222112 in words is "twenty-two trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred twelve".