222123113231 has 8 divisors (see below), whose sum is σ = 222542542464. Its totient is φ = 221703773400.

The previous prime is 222123113209. The next prime is 222123113237. The reversal of 222123113231 is 132311321222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222123113231 is a prime.

It is a super-2 number, since 2×222123113231² (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 = 222123113197 and 222123113206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222123113237) 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 7 ways as a sum of consecutive naturals, for example, 6994070 + ... + 7025756.

It is an arithmetic number, because the mean of its divisors is an integer number (27817817808).

Almost surely, 2^222123113231 is an apocalyptic number.

222123113231 is a deficient number, since it is larger than the sum of its proper divisors (419429233).

222123113231 is a wasteful number, since it uses less digits than its factorization.

222123113231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44701.

The product of its digits is 864, while the sum is 23.

Adding to 222123113231 its reverse (132311321222), we get a palindrome (354434434453).

The spelling of 222123113231 in words is "two hundred twenty-two billion, one hundred twenty-three million, one hundred thirteen thousand, two hundred thirty-one".