220020011100 has 72 divisors (see below), whose sum is σ = 707323599920. Its totient is φ = 58672002240.

The previous prime is 220020011063. The next prime is 220020011161. The reversal of 220020011100 is 1110020022.

It is a Harshad number since it is a multiple of its sum of digits (9).

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, 40741747 + ... + 40747146.

Almost surely, 2^220020011100 is an apocalyptic number.

220020011100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220020011100 is an abundant number, since it is smaller than the sum of its proper divisors (487303588820).

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

220020011100 is a wasteful number, since it uses less digits than its factorization.

220020011100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81488916 (or 81488903 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 220020011100 its reverse (1110020022), we get a palindrome (221130031122).

The spelling of 220020011100 in words is "two hundred twenty billion, twenty million, eleven thousand, one hundred".