221222112020032 has 14 divisors (see below), whose sum is σ = 438987628539878. Its totient is φ = 110611056009984.

The previous prime is 221222112020027. The next prime is 221222112020051. The reversal of 221222112020032 is 230020211222122.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 209875023340096 + 11347088679936 = 14487064^2 + 3368544^2 .

It is a junction number, because it is equal to n+sod(n) for n = 221222112019985 and 221222112020012.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1728297750093 + ... + 1728297750220.

Almost surely, 2^{221222112020032} is an apocalyptic number.

It is an amenable number.

221222112020032 is a deficient number, since it is larger than the sum of its proper divisors (217765516519846).

221222112020032 is an equidigital number, since it uses as much as digits as its factorization.

221222112020032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3456595500325 (or 3456595500315 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 221222112020032 its reverse (230020211222122), we get a palindrome (451242323242154).

The spelling of 221222112020032 in words is "two hundred twenty-one trillion, two hundred twenty-two billion, one hundred twelve million, twenty thousand, thirty-two".