220022011100221 has 12 divisors (see below), whose sum is σ = 241842991375132. Its totient is φ = 200019501000000.

The previous prime is 220022011100207. The next prime is 220022011100267. The reversal of 220022011100221 is 122001110220022.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 132704386628121 + 87317624472100 = 11519739^2 + 9344390^2 .

It is not a de Polignac number, because 220022011100221 - 2³⁷ = 219884572146749 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 220022011100195 and 220022011100204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220022011190221) 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, 50356321 + ... + 54550921.

Almost surely, 2^{220022011100221} is an apocalyptic number.

It is an amenable number.

220022011100221 is a deficient number, since it is larger than the sum of its proper divisors (21820980274911).

220022011100221 is a wasteful number, since it uses less digits than its factorization.

220022011100221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4628124 (or 4628113 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 220022011100221 its reverse (122001110220022), we get a palindrome (342023121320243).

The spelling of 220022011100221 in words is "two hundred twenty trillion, twenty-two billion, eleven million, one hundred thousand, two hundred twenty-one".