220240220 has 12 divisors (see below), whose sum is σ = 462504504. Its totient is φ = 88096080.

The previous prime is 220240217. The next prime is 220240231. The reversal of 220240220 is 22042022.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 220240195 and 220240204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5505986 + ... + 5506025.

It is an arithmetic number, because the mean of its divisors is an integer number (38542042).

Almost surely, 2^220240220 is an apocalyptic number.

220240220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220240220 is an abundant number, since it is smaller than the sum of its proper divisors (242264284).

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

220240220 is a wasteful number, since it uses less digits than its factorization.

220240220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11012020 (or 11012018 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 220240220 is about 14840.4925794261. The cubic root of 220240220 is about 603.9007153737.

Adding to 220240220 its reverse (22042022), we get a palindrome (242282242).

The spelling of 220240220 in words is "two hundred twenty million, two hundred forty thousand, two hundred twenty".