112200201981 has 24 divisors (see below), whose sum is σ = 185259039680. Its totient is φ = 64100673216.

The previous prime is 112200201913. The next prime is 112200201983. The reversal of 112200201981 is 189102002211.

It is not a de Polignac number, because 112200201981 - 2¹³ = 112200193789 is a prime.

It is a super-2 number, since 2×112200201981² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112200201983) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 109626 + ... + 486228.

Almost surely, 2^112200201981 is an apocalyptic number.

It is an amenable number.

112200201981 is a deficient number, since it is larger than the sum of its proper divisors (73058837699).

112200201981 is a wasteful number, since it uses less digits than its factorization.

112200201981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 381345 (or 381342 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 27.

The spelling of 112200201981 in words is "one hundred twelve billion, two hundred million, two hundred one thousand, nine hundred eighty-one".