220520204 has 6 divisors (see below), whose sum is σ = 385910364. Its totient is φ = 110260100.

The previous prime is 220520203. The next prime is 220520231. The reversal of 220520204 is 402025022.

220520204 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (220520203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27565022 + ... + 27565029.

It is an arithmetic number, because the mean of its divisors is an integer number (64318394).

Almost surely, 2^220520204 is an apocalyptic number.

It is an amenable number.

220520204 is a deficient number, since it is larger than the sum of its proper divisors (165390160).

220520204 is a wasteful number, since it uses less digits than its factorization.

220520204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55130055 (or 55130053 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 17.

The square root of 220520204 is about 14849.9226934015. The cubic root of 220520204 is about 604.1565132457.

Adding to 220520204 its reverse (402025022), we get a palindrome (622545226).

The spelling of 220520204 in words is "two hundred twenty million, five hundred twenty thousand, two hundred four".