220220031220 has 48 divisors (see below), whose sum is σ = 546753191040. Its totient is φ = 72900422784.

The previous prime is 220220031173. The next prime is 220220031223. The reversal of 220220031220 is 22130022022.

It is a junction number, because it is equal to n+sod(n) for n = 220220031194 and 220220031203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220220031223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27116634 + ... + 27124753.

It is an arithmetic number, because the mean of its divisors is an integer number (11390691480).

Almost surely, 2^220220031220 is an apocalyptic number.

220220031220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220220031220 is an abundant number, since it is smaller than the sum of its proper divisors (326533159820).

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

220220031220 is a wasteful number, since it uses less digits than its factorization.

220220031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54241432 (or 54241430 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 220220031220 its reverse (22130022022), we get a palindrome (242350053242).

The spelling of 220220031220 in words is "two hundred twenty billion, two hundred twenty million, thirty-one thousand, two hundred twenty".