222336633221 has 4 divisors (see below), whose sum is σ = 223959528492. Its totient is φ = 220713737952.

The previous prime is 222336633191. The next prime is 222336633241. The reversal of 222336633221 is 122336633222.

It is a happy number.

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 134788108225 + 87548524996 = 367135^2 + 295886^2 .

It is a cyclic number.

It is not a de Polignac number, because 222336633221 - 2¹⁰ = 222336632197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222336633241) 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, 811447430 + ... + 811447703.

It is an arithmetic number, because the mean of its divisors is an integer number (55989882123).

Almost surely, 2^222336633221 is an apocalyptic number.

It is an amenable number.

222336633221 is a deficient number, since it is larger than the sum of its proper divisors (1622895271).

222336633221 is a wasteful number, since it uses less digits than its factorization.

222336633221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622895270.

The product of its digits is 93312, while the sum is 35.

Subtracting from 222336633221 its reverse (122336633222), we obtain a palindrome (99999999999).

The spelling of 222336633221 in words is "two hundred twenty-two billion, three hundred thirty-six million, six hundred thirty-three thousand, two hundred twenty-one".