220120044 has 12 divisors (see below), whose sum is σ = 513613464. Its totient is φ = 73373344.

The previous prime is 220120027. The next prime is 220120049. The reversal of 220120044 is 440021022.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (220120049) 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, 9171657 + ... + 9171680.

It is an arithmetic number, because the mean of its divisors is an integer number (42801122).

Almost surely, 2^220120044 is an apocalyptic number.

It is an amenable number.

220120044 is an abundant number, since it is smaller than the sum of its proper divisors (293493420).

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

220120044 is a wasteful number, since it uses less digits than its factorization.

220120044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18343344 (or 18343342 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

The square root of 220120044 is about 14836.4431047337. The cubic root of 220120044 is about 603.7908541554.

Adding to 220120044 its reverse (440021022), we get a palindrome (660141066).

The spelling of 220120044 in words is "two hundred twenty million, one hundred twenty thousand, forty-four".