222131023 has 2 divisors, whose sum is σ = 222131024. Its totient is φ = 222131022.

The previous prime is 222130999. The next prime is 222131029. The reversal of 222131023 is 320131222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222131023 - 2²¹ = 220033871 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222130988 and 222131006.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222131029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111065511 + 111065512.

It is an arithmetic number, because the mean of its divisors is an integer number (111065512).

Almost surely, 2^222131023 is an apocalyptic number.

222131023 is a deficient number, since it is larger than the sum of its proper divisors (1).

222131023 is an equidigital number, since it uses as much as digits as its factorization.

222131023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 222131023 is about 14904.0606211864. The cubic root of 222131023 is about 605.6239929473.

Adding to 222131023 its reverse (320131222), we get a palindrome (542262245).

The spelling of 222131023 in words is "two hundred twenty-two million, one hundred thirty-one thousand, twenty-three".