220201121100 has 72 divisors (see below), whose sum is σ = 644273920080. Its totient is φ = 58060513280.

The previous prime is 220201121089. The next prime is 220201121149. The reversal of 220201121100 is 1121102022.

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

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, 4096917 + ... + 4150316.

It is an arithmetic number, because the mean of its divisors is an integer number (8948248890).

Almost surely, 2^220201121100 is an apocalyptic number.

220201121100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220201121100 is an abundant number, since it is smaller than the sum of its proper divisors (424072798980).

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

220201121100 is a wasteful number, since it uses less digits than its factorization.

220201121100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8247339 (or 8247332 counting only the distinct ones).

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

Adding to 220201121100 its reverse (1121102022), we get a palindrome (221322223122).

The spelling of 220201121100 in words is "two hundred twenty billion, two hundred one million, one hundred twenty-one thousand, one hundred".