220101122120202 has 12 divisors (see below), whose sum is σ = 476885764593810. Its totient is φ = 73367040706728.

The previous prime is 220101122120197. The next prime is 220101122120203. The reversal of 220101122120202 is 202021221101022.

It is a happy number.

220101122120202 is a `hidden beast` number, since 220 + 1 + 0 + 1 + 1 + 221 + 20 + 202 = 666.

It can be written as a sum of positive squares in only one way, i.e., 219663789881481 + 437332238721 = 14821059^2 + 661311^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 12227840117789 = 220101122120202 / (2 + 2 + 0 + 1 + 0 + 1 + 1 + 2 + 2 + 1 + 2 + 0 + 2 + 0 + 2).

It is not an unprimeable number, because it can be changed into a prime (220101122120203) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6113920058877 + ... + 6113920058912.

Almost surely, 2^{220101122120202} is an apocalyptic number.

220101122120202 is an abundant number, since it is smaller than the sum of its proper divisors (256784642473608).

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

220101122120202 is a wasteful number, since it uses less digits than its factorization.

220101122120202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12227840117797 (or 12227840117794 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 220101122120202 its reverse (202021221101022), we get a palindrome (422122343221224).

The spelling of 220101122120202 in words is "two hundred twenty trillion, one hundred one billion, one hundred twenty-two million, one hundred twenty thousand, two hundred two".