22213031112 has 80 divisors (see below), whose sum is σ = 62259937740. Its totient is φ = 7399240704.

The previous prime is 22213031083. The next prime is 22213031131. The reversal of 22213031112 is 21113031222.

22213031112 is a `hidden beast` number, since 222 + 130 + 311 + 1 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 22089687876 + 123343236 = 148626^2 + 11106^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 995308 + ... + 1017380.

Almost surely, 2^22213031112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22213031112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31129968870).

22213031112 is an abundant number, since it is smaller than the sum of its proper divisors (40046906628).

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

22213031112 is a wasteful number, since it uses less digits than its factorization.

22213031112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23644 (or 23631 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 22213031112 its reverse (21113031222), we get a palindrome (43326062334).

The spelling of 22213031112 in words is "twenty-two billion, two hundred thirteen million, thirty-one thousand, one hundred twelve".