220020202211121 has 12 divisors (see below), whose sum is σ = 342253647884148. Its totient is φ = 135397047514464.

The previous prime is 220020202211023. The next prime is 220020202211141. The reversal of 220020202211121 is 121112202020022.

It is a happy number.

220020202211121 is a `hidden beast` number, since 220 + 0 + 20 + 202 + 211 + 12 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 30720137630625 + 189300064580496 = 5542575^2 + 13758636^2 .

It is not a de Polignac number, because 220020202211121 - 2³³ = 220011612276529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 220020202211094 and 220020202211103.

It is not an unprimeable number, because it can be changed into a prime (220020202211141) 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, 940257274290 + ... + 940257274523.

It is an arithmetic number, because the mean of its divisors is an integer number (28521137323679).

Almost surely, 2^{220020202211121} is an apocalyptic number.

It is an amenable number.

220020202211121 is a deficient number, since it is larger than the sum of its proper divisors (122233445673027).

220020202211121 is a wasteful number, since it uses less digits than its factorization.

220020202211121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1880514548832 (or 1880514548829 counting only the distinct ones).

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

Adding to 220020202211121 its reverse (121112202020022), we get a palindrome (341132404231143).

The spelling of 220020202211121 in words is "two hundred twenty trillion, twenty billion, two hundred two million, two hundred eleven thousand, one hundred twenty-one".