112112221000 has 64 divisors (see below), whose sum is σ = 282522829680. Its totient is φ = 41395276800.

The previous prime is 112112220929. The next prime is 112112221019. The reversal of 112112221000 is 122211211.

It can be written as a sum of positive squares in 8 ways, for example, as 17173054116 + 94939166884 = 131046^2 + 308122^2 .

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4299009 + ... + 4325008.

Almost surely, 2^112112221000 is an apocalyptic number.

112112221000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112112221000 is an abundant number, since it is smaller than the sum of its proper divisors (170410608680).

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

112112221000 is a wasteful number, since it uses less digits than its factorization.

112112221000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8624051 (or 8624037 counting only the distinct ones).

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

Adding to 112112221000 its reverse (122211211), we get a palindrome (112234432211).

The spelling of 112112221000 in words is "one hundred twelve billion, one hundred twelve million, two hundred twenty-one thousand".