22211111112 has 32 divisors (see below), whose sum is σ = 58450293600. Its totient is φ = 7014034944.

The previous prime is 22211111077. The next prime is 22211111113. The reversal of 22211111112 is 21111111222.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 22211111091 and 22211111100.

It is not an unprimeable number, because it can be changed into a prime (22211111113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24353833 + ... + 24354744.

It is an arithmetic number, because the mean of its divisors is an integer number (1826571675).

Almost surely, 2^22211111112 is an apocalyptic number.

It is an amenable number.

22211111112 is an abundant number, since it is smaller than the sum of its proper divisors (36239182488).

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

22211111112 is a wasteful number, since it uses less digits than its factorization.

22211111112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48708605 (or 48708601 counting only the distinct ones).

The product of its digits is 16, while the sum is 15.

Adding to 22211111112 its reverse (21111111222), we get a palindrome (43322222334).

It can be divided in two parts, 22 and 211111112, that multiplied together give a palindrome (4644444464).

The spelling of 22211111112 in words is "twenty-two billion, two hundred eleven million, one hundred eleven thousand, one hundred twelve".