220220040204 has 72 divisors (see below), whose sum is σ = 593653067280. Its totient is φ = 68591572992.

The previous prime is 220220040191. The next prime is 220220040217. The reversal of 220220040204 is 402040022022.

220220040204 is a `hidden beast` number, since 220 + 2 + 200 + 40 + 204 = 666.

It is an interprime number because it is at equal distance from previous prime (220220040191) and next prime (220220040217).

It is a super-2 number, since 2×220220040204² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1209309 + ... + 1379444.

It is an arithmetic number, because the mean of its divisors is an integer number (8245181490).

Almost surely, 2^220220040204 is an apocalyptic number.

It is an amenable number.

220220040204 is an abundant number, since it is smaller than the sum of its proper divisors (373433027076).

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

220220040204 is a wasteful number, since it uses less digits than its factorization.

220220040204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2588919 (or 2588914 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 18.

Adding to 220220040204 its reverse (402040022022), we get a palindrome (622260062226).

The spelling of 220220040204 in words is "two hundred twenty billion, two hundred twenty million, forty thousand, two hundred four".