222323121031 has 4 divisors (see below), whose sum is σ = 242534313864. Its totient is φ = 202111928200.

The previous prime is 222323120983. The next prime is 222323121061. The reversal of 222323121031 is 130121323222.

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

It is a cyclic number.

It is not a de Polignac number, because 222323121031 - 2²⁷ = 222188903303 is a prime.

It is a super-2 number, since 2×222323121031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222323120993 and 222323121011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222323121061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10105596400 + ... + 10105596421.

It is an arithmetic number, because the mean of its divisors is an integer number (60633578466).

Almost surely, 2^222323121031 is an apocalyptic number.

222323121031 is a deficient number, since it is larger than the sum of its proper divisors (20211192833).

222323121031 is a wasteful number, since it uses less digits than its factorization.

222323121031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20211192832.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 222323121031 its reverse (130121323222), we get a palindrome (352444444253).

The spelling of 222323121031 in words is "two hundred twenty-two billion, three hundred twenty-three million, one hundred twenty-one thousand, thirty-one".