222201023231 has 16 divisors (see below), whose sum is σ = 245636985888. Its totient is φ = 199318032000.

The previous prime is 222201023153. The next prime is 222201023237. The reversal of 222201023231 is 132320102222.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222201023231 is a prime.

It is a super-2 number, since 2×222201023231² (a number of 23 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 (222201023237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15776 + ... + 666821.

It is an arithmetic number, because the mean of its divisors is an integer number (15352311618).

Almost surely, 2^222201023231 is an apocalyptic number.

222201023231 is a deficient number, since it is larger than the sum of its proper divisors (23435962657).

222201023231 is a wasteful number, since it uses less digits than its factorization.

222201023231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 683002.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 222201023231 its reverse (132320102222), we get a palindrome (354521125453).

The spelling of 222201023231 in words is "two hundred twenty-two billion, two hundred one million, twenty-three thousand, two hundred thirty-one".