123112222099 has 2 divisors, whose sum is σ = 123112222100. Its totient is φ = 123112222098.

The previous prime is 123112222091. The next prime is 123112222111. The reversal of 123112222099 is 990222211321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123112222099 - 2³ = 123112222091 is a prime.

It is not a weakly prime, because it can be changed into another prime (123112222091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61556111049 + 61556111050.

It is an arithmetic number, because the mean of its divisors is an integer number (61556111050).

Almost surely, 2^123112222099 is an apocalyptic number.

123112222099 is a deficient number, since it is larger than the sum of its proper divisors (1).

123112222099 is an equidigital number, since it uses as much as digits as its factorization.

123112222099 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 123112222099 in words is "one hundred twenty-three billion, one hundred twelve million, two hundred twenty-two thousand, ninety-nine".