220112011100020 has 96 divisors (see below), whose sum is σ = 502669520946432. Its totient is φ = 80477114554368.

The previous prime is 220112011099943. The next prime is 220112011100021. The reversal of 220112011100020 is 20001110211022.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220112011100021) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 27706999 + ... + 34754881.

It is an arithmetic number, because the mean of its divisors is an integer number (5236140843192).

Almost surely, 2^{220112011100020} is an apocalyptic number.

220112011100020 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 220112011100020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (251334760473216).

220112011100020 is an abundant number, since it is smaller than the sum of its proper divisors (282557509846412).

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

220112011100020 is a wasteful number, since it uses less digits than its factorization.

220112011100020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7049081 (or 7049079 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 220112011100020 its reverse (20001110211022), we get a palindrome (240113121311042).

The spelling of 220112011100020 in words is "two hundred twenty trillion, one hundred twelve billion, eleven million, one hundred thousand, twenty".