220404200220 has 72 divisors (see below), whose sum is σ = 668643415440. Its totient is φ = 58767068160.

The previous prime is 220404200189. The next prime is 220404200251. The reversal of 220404200220 is 22002404022.

220404200220 is a `hidden beast` number, since 2 + 20 + 4 + 0 + 420 + 0 + 220 = 666.

It is an interprime number because it is at equal distance from previous prime (220404200189) and next prime (220404200251).

It is a super-2 number, since 2×220404200220² (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 a junction number, because it is equal to n+sod(n) for n = 220404200193 and 220404200202.

It is a congruent number.

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, 1442700 + ... + 1588140.

Almost surely, 2^220404200220 is an apocalyptic number.

220404200220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220404200220 is an abundant number, since it is smaller than the sum of its proper divisors (448239215220).

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

220404200220 is a wasteful number, since it uses less digits than its factorization.

220404200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153875 (or 153870 counting only the distinct ones).

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

Adding to 220404200220 its reverse (22002404022), we get a palindrome (242406604242).

The spelling of 220404200220 in words is "two hundred twenty billion, four hundred four million, two hundred thousand, two hundred twenty".