220011020100 has 144 divisors (see below), whose sum is σ = 731684419200. Its totient is φ = 56646495360.

The previous prime is 220011020057. The next prime is 220011020101. The reversal of 220011020100 is 1020110022.

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 (220011020101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1326624 + ... + 1483223.

It is an arithmetic number, because the mean of its divisors is an integer number (5081141800).

Almost surely, 2^220011020100 is an apocalyptic number.

220011020100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220011020100 is an abundant number, since it is smaller than the sum of its proper divisors (511673399100).

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

220011020100 is a wasteful number, since it uses less digits than its factorization.

220011020100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2809899 (or 2809886 counting only the distinct ones).

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

Adding to 220011020100 its reverse (1020110022), we get a palindrome (221031130122).

The spelling of 220011020100 in words is "two hundred twenty billion, eleven million, twenty thousand, one hundred".