110199981 has 16 divisors (see below), whose sum is σ = 156094400. Its totient is φ = 68957568.

The previous prime is 110199979. The next prime is 110199983. The reversal of 110199981 is 189991011.

It is an interprime number because it is at equal distance from previous prime (110199979) and next prime (110199983).

It is not a de Polignac number, because 110199981 - 2¹ = 110199979 is a prime.

It is a super-2 number, since 2×110199981² = 24288071624800722, which 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 (110199983) 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, 2656 + ... + 15081.

It is an arithmetic number, because the mean of its divisors is an integer number (9755900).

Almost surely, 2^110199981 is an apocalyptic number.

It is an amenable number.

110199981 is a deficient number, since it is larger than the sum of its proper divisors (45894419).

110199981 is a wasteful number, since it uses less digits than its factorization.

110199981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17868.

The product of its (nonzero) digits is 5832, while the sum is 39.

The square root of 110199981 is about 10497.6178726414. The cubic root of 110199981 is about 479.4321714191.

The spelling of 110199981 in words is "one hundred ten million, one hundred ninety-nine thousand, nine hundred eighty-one".