112222021000 has 64 divisors (see below), whose sum is σ = 262856159280. Its totient is φ = 44844940800.

The previous prime is 112222020961. The next prime is 112222021003. The reversal of 112222021000 is 120222211.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 17236013796 + 94986007204 = 131286^2 + 308198^2 .

It is not an unprimeable number, because it can be changed into a prime (112222021003) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 978682 + ... + 1087318.

Almost surely, 2^112222021000 is an apocalyptic number.

112222021000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112222021000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131428079640).

112222021000 is an abundant number, since it is smaller than the sum of its proper divisors (150634138280).

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

112222021000 is a wasteful number, since it uses less digits than its factorization.

112222021000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109691 (or 109677 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 112222021000 its reverse (120222211), we get a palindrome (112342243211).

The spelling of 112222021000 in words is "one hundred twelve billion, two hundred twenty-two million, twenty-one thousand".