222231123213 has 72 divisors (see below), whose sum is σ = 332892186144. Its totient is φ = 131771090880.

The previous prime is 222231123209. The next prime is 222231123229. The reversal of 222231123213 is 312321132222.

222231123213 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 222231123213 - 2² = 222231123209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222231123203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 501650170 + ... + 501650612.

Almost surely, 2^222231123213 is an apocalyptic number.

It is an amenable number.

222231123213 is a deficient number, since it is larger than the sum of its proper divisors (110661062931).

222231123213 is a wasteful number, since it uses less digits than its factorization.

222231123213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983 (or 913 counting only the distinct ones).

The product of its digits is 1728, while the sum is 24.

Adding to 222231123213 its reverse (312321132222), we get a palindrome (534552255435).

Subtracting 222231123213 from its reverse (312321132222), we obtain a palindrome (90090009009).

The spelling of 222231123213 in words is "two hundred twenty-two billion, two hundred thirty-one million, one hundred twenty-three thousand, two hundred thirteen".