22011112120 has 16 divisors (see below), whose sum is σ = 49525002360. Its totient is φ = 8804444832.

The previous prime is 22011112111. The next prime is 22011112121. The reversal of 22011112120 is 2121111022.

It is a self number, because there is not a number n which added to its sum of digits gives 22011112120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22011112121) 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, 275138862 + ... + 275138941.

Almost surely, 2^22011112120 is an apocalyptic number.

22011112120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22011112120 is an abundant number, since it is smaller than the sum of its proper divisors (27513890240).

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

22011112120 is a wasteful number, since it uses less digits than its factorization.

22011112120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550277814 (or 550277810 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 22011112120 its reverse (2121111022), we get a palindrome (24132223142).

The spelling of 22011112120 in words is "twenty-two billion, eleven million, one hundred twelve thousand, one hundred twenty".