220520020 has 24 divisors (see below), whose sum is σ = 529248384. Its totient is φ = 75606816.

The previous prime is 220520011. The next prime is 220520033. The reversal of 220520020 is 20025022.

220520020 is digitally balanced in base 2, because in such base 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, 787432 + ... + 787711.

It is an arithmetic number, because the mean of its divisors is an integer number (22052016).

Almost surely, 2^220520020 is an apocalyptic number.

220520020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220520020 is an abundant number, since it is smaller than the sum of its proper divisors (308728364).

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

220520020 is a wasteful number, since it uses less digits than its factorization.

220520020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1575159 (or 1575157 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 13.

The square root of 220520020 is about 14849.9164980817. The cubic root of 220520020 is about 604.1563452114.

Adding to 220520020 its reverse (20025022), we get a palindrome (240545042).

The spelling of 220520020 in words is "two hundred twenty million, five hundred twenty thousand, twenty".