220015020 has 96 divisors (see below), whose sum is σ = 668316096. Its totient is φ = 53862400.

The previous prime is 220015007. The next prime is 220015043. The reversal of 220015020 is 20510022.

220015020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 220014987 and 220015005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 39190 + ... + 44450.

It is an arithmetic number, because the mean of its divisors is an integer number (6961626).

Almost surely, 2^220015020 is an apocalyptic number.

220015020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220015020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334158048).

220015020 is an abundant number, since it is smaller than the sum of its proper divisors (448301076).

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

220015020 is a wasteful number, since it uses less digits than its factorization.

220015020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5331 (or 5329 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 220015020 is about 14832.9032896463. The cubic root of 220015020 is about 603.6948116849.

Adding to 220015020 its reverse (20510022), we get a palindrome (240525042).

The spelling of 220015020 in words is "two hundred twenty million, fifteen thousand, twenty".