123222287 has 2 divisors, whose sum is σ = 123222288. Its totient is φ = 123222286.

The previous prime is 123222269. The next prime is 123222317. The reversal of 123222287 is 782222321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123222287 - 2⁶ = 123222223 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123222217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61611143 + 61611144.

It is an arithmetic number, because the mean of its divisors is an integer number (61611144).

Almost surely, 2^123222287 is an apocalyptic number.

123222287 is a deficient number, since it is larger than the sum of its proper divisors (1).

123222287 is an equidigital number, since it uses as much as digits as its factorization.

123222287 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5376, while the sum is 29.

The square root of 123222287 is about 11100.5534546706. The cubic root of 123222287 is about 497.6183898780.

The spelling of 123222287 in words is "one hundred twenty-three million, two hundred twenty-two thousand, two hundred eighty-seven".