220117144 has 32 divisors (see below), whose sum is σ = 456487920. Its totient is φ = 98845056.

The previous prime is 220117127. The next prime is 220117171. The reversal of 220117144 is 441711022.

220117144 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24754 + ... + 32449.

Almost surely, 2^220117144 is an apocalyptic number.

It is an amenable number.

220117144 is an abundant number, since it is smaller than the sum of its proper divisors (236370776).

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

220117144 is a wasteful number, since it uses less digits than its factorization.

220117144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57259 (or 57255 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 22.

The square root of 220117144 is about 14836.3453720921. The cubic root of 220117144 is about 603.7882025702.

Adding to 220117144 its reverse (441711022), we get a palindrome (661828166).

The spelling of 220117144 in words is "two hundred twenty million, one hundred seventeen thousand, one hundred forty-four".