220120111212220 has 72 divisors (see below), whose sum is σ = 474533769679200. Its totient is φ = 85761612756864.

The previous prime is 220120111212193. The next prime is 220120111212251. The reversal of 220120111212220 is 22212111021022.

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, 6914800 + ... + 22091959.

It is an arithmetic number, because the mean of its divisors is an integer number (6590746801100).

Almost surely, 2^{220120111212220} is an apocalyptic number.

220120111212220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220120111212220 is an abundant number, since it is smaller than the sum of its proper divisors (254413658466980).

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

220120111212220 is a wasteful number, since it uses less digits than its factorization.

220120111212220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29006995 (or 29006934 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 220120111212220 its reverse (22212111021022), we get a palindrome (242332222233242).

The spelling of 220120111212220 in words is "two hundred twenty trillion, one hundred twenty billion, one hundred eleven million, two hundred twelve thousand, two hundred twenty".