222111023 has 4 divisors (see below), whose sum is σ = 231768048. Its totient is φ = 212454000.

The previous prime is 222111017. The next prime is 222111031. The reversal of 222111023 is 320111222.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222111023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 222110989 and 222111007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222111053) 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, 4828478 + ... + 4828523.

It is an arithmetic number, because the mean of its divisors is an integer number (57942012).

Almost surely, 2^222111023 is an apocalyptic number.

222111023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

222111023 is a deficient number, since it is larger than the sum of its proper divisors (9657025).

222111023 is an equidigital number, since it uses as much as digits as its factorization.

222111023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9657024.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 222111023 is about 14903.3896479962. The cubic root of 222111023 is about 605.6058162225.

Adding to 222111023 its reverse (320111222), we get a palindrome (542222245).

The spelling of 222111023 in words is "two hundred twenty-two million, one hundred eleven thousand, twenty-three".