220112220020 has 96 divisors (see below), whose sum is σ = 577168333056. Its totient is φ = 68502297600.

The previous prime is 220112220001. The next prime is 220112220061. The reversal of 220112220020 is 20022211022.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 220112219977 and 220112220004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 909824 + ... + 1126056.

It is an arithmetic number, because the mean of its divisors is an integer number (6012170136).

Almost surely, 2^220112220020 is an apocalyptic number.

220112220020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220112220020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288584166528).

220112220020 is an abundant number, since it is smaller than the sum of its proper divisors (357056113036).

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

220112220020 is a wasteful number, since it uses less digits than its factorization.

220112220020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216921 (or 216919 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 220112220020 its reverse (20022211022), we get a palindrome (240134431042).

It can be divided in two parts, 2201 and 12220020, that added together give a palindrome (12222221).

The spelling of 220112220020 in words is "two hundred twenty billion, one hundred twelve million, two hundred twenty thousand, twenty".