222000023 has 4 divisors (see below), whose sum is σ = 253714320. Its totient is φ = 190285728.

The previous prime is 222000019. The next prime is 222000043. The reversal of 222000023 is 320000222.

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 222000023 - 2² = 222000019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221999968 and 222000013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222000043) 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, 15857138 + ... + 15857151.

It is an arithmetic number, because the mean of its divisors is an integer number (63428580).

Almost surely, 2^222000023 is an apocalyptic number.

222000023 is a deficient number, since it is larger than the sum of its proper divisors (31714297).

222000023 is an equidigital number, since it uses as much as digits as its factorization.

222000023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31714296.

The product of its (nonzero) digits is 48, while the sum is 11.

The square root of 222000023 is about 14899.6651975808. The cubic root of 222000023 is about 605.5049155619.

Adding to 222000023 its reverse (320000222), we get a palindrome (542000245).

The spelling of 222000023 in words is "two hundred twenty-two million, twenty-three", and thus it is an aban number.