422133111221 has 4 divisors (see below), whose sum is σ = 424966219500. Its totient is φ = 419300002944.

The previous prime is 422133111163. The next prime is 422133111223. The reversal of 422133111221 is 122111331224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 20310240196 + 401822871025 = 142514^2 + 633895^2 .

It is a cyclic number.

It is not a de Polignac number, because 422133111221 - 2²⁶ = 422066002357 is a prime.

It is a super-2 number, since 2×422133111221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422133111223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1416553916 + ... + 1416554213.

It is an arithmetic number, because the mean of its divisors is an integer number (106241554875).

Almost surely, 2^422133111221 is an apocalyptic number.

It is an amenable number.

422133111221 is a deficient number, since it is larger than the sum of its proper divisors (2833108279).

422133111221 is a wasteful number, since it uses less digits than its factorization.

422133111221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2833108278.

The product of its digits is 576, while the sum is 23.

Adding to 422133111221 its reverse (122111331224), we get a palindrome (544244442445).

The spelling of 422133111221 in words is "four hundred twenty-two billion, one hundred thirty-three million, one hundred eleven thousand, two hundred twenty-one".