220101232100 has 36 divisors (see below), whose sum is σ = 505714952484. Its totient is φ = 82861639680.

The previous prime is 220101232093. The next prime is 220101232103. The reversal of 220101232100 is 1232101022.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5893325824 + 214207906276 = 76768^2 + 462826^2 .

It is not an unprimeable number, because it can be changed into a prime (220101232103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 64733957 + ... + 64737356.

It is an arithmetic number, because the mean of its divisors is an integer number (14047637569).

Almost surely, 2^220101232100 is an apocalyptic number.

220101232100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220101232100 is an abundant number, since it is smaller than the sum of its proper divisors (285613720384).

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

220101232100 is a wasteful number, since it uses less digits than its factorization.

220101232100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129471344 (or 129471337 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 220101232100 its reverse (1232101022), we get a palindrome (221333333122).

The spelling of 220101232100 in words is "two hundred twenty billion, one hundred one million, two hundred thirty-two thousand, one hundred".