220021100112 has 80 divisors (see below), whose sum is σ = 620127898560. Its totient is φ = 66665702400.

The previous prime is 220021100099. The next prime is 220021100149. The reversal of 220021100112 is 211001120022.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6535162 + ... + 6568742.

It is an arithmetic number, because the mean of its divisors is an integer number (7751598732).

Almost surely, 2^220021100112 is an apocalyptic number.

220021100112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

220021100112 is an abundant number, since it is smaller than the sum of its proper divisors (400106798448).

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

220021100112 is a wasteful number, since it uses less digits than its factorization.

220021100112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46012 (or 46006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 220021100112 its reverse (211001120022), we get a palindrome (431022220134).

The spelling of 220021100112 in words is "two hundred twenty billion, twenty-one million, one hundred thousand, one hundred twelve".