112221900 has 216 divisors, whose sum is σ = 411640320. Its totient is φ = 25038720.

The previous prime is 112221869. The next prime is 112221917. The reversal of 112221900 is 9122211.

It is a super-2 number, since 2×112221900² = 25187509679220000, which contains 22 as substring.

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 71 ways as a sum of consecutive naturals, for example, 295911 + ... + 296289.

Almost surely, 2^112221900 is an apocalyptic number.

112221900 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 112221900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205820160).

112221900 is an abundant number, since it is smaller than the sum of its proper divisors (299418420).

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

112221900 is a wasteful number, since it uses less digits than its factorization.

112221900 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453 (or 443 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The square root of 112221900 is about 10593.4838462141. The cubic root of 112221900 is about 482.3465824534.

The spelling of 112221900 in words is "one hundred twelve million, two hundred twenty-one thousand, nine hundred".