220020101100 has 54 divisors (see below), whose sum is σ = 689640786380. Its totient is φ = 58672026720.

The previous prime is 220020101087. The next prime is 220020101101. The reversal of 220020101100 is 1101020022.

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

It is not an unprimeable number, because it can be changed into a prime (220020101101) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 122232490 + ... + 122234289.

Almost surely, 2^220020101100 is an apocalyptic number.

220020101100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220020101100 is an abundant number, since it is smaller than the sum of its proper divisors (469620685280).

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

220020101100 is a wasteful number, since it uses less digits than its factorization.

220020101100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244466799 (or 244466789 counting only the distinct ones).

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

Adding to 220020101100 its reverse (1101020022), we get a palindrome (221121121122).

The spelling of 220020101100 in words is "two hundred twenty billion, twenty million, one hundred one thousand, one hundred".