110220989 has 4 divisors (see below), whose sum is σ = 110258940. Its totient is φ = 110183040.

The previous prime is 110220983. The next prime is 110221019. The reversal of 110220989 is 989022011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65772100 + 44448889 = 8110^2 + 6667^2 .

It is a cyclic number.

It is not a de Polignac number, because 110220989 - 2¹² = 110216893 is a prime.

It is a super-2 number, since 2×110220989² = 24297332832276242, 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 (110220983) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14222 + ... + 20559.

It is an arithmetic number, because the mean of its divisors is an integer number (27564735).

Almost surely, 2^110220989 is an apocalyptic number.

It is an amenable number.

110220989 is a deficient number, since it is larger than the sum of its proper divisors (37951).

110220989 is an equidigital number, since it uses as much as digits as its factorization.

110220989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37950.

The product of its (nonzero) digits is 2592, while the sum is 32.

The square root of 110220989 is about 10498.6184329177. The cubic root of 110220989 is about 479.4626350393.

The spelling of 110220989 in words is "one hundred ten million, two hundred twenty thousand, nine hundred eighty-nine".