220112211220 has 48 divisors (see below), whose sum is σ = 526181298048. Its totient is φ = 76560767360.

The previous prime is 220112211181. The next prime is 220112211229. The reversal of 220112211220 is 22112211022.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 220112211194 and 220112211203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112211229) 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, 21745159 + ... + 21755278.

It is an arithmetic number, because the mean of its divisors is an integer number (10962110376).

Almost surely, 2^220112211220 is an apocalyptic number.

220112211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220112211220 is an abundant number, since it is smaller than the sum of its proper divisors (306069086828).

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

220112211220 is a wasteful number, since it uses less digits than its factorization.

220112211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43500480 (or 43500478 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220112211220 its reverse (22112211022), we get a palindrome (242224422242).

The spelling of 220112211220 in words is "two hundred twenty billion, one hundred twelve million, two hundred eleven thousand, two hundred twenty".