122123111299 has 4 divisors (see below), whose sum is σ = 139569270064. Its totient is φ = 104676952536.

The previous prime is 122123111267. The next prime is 122123111317. The reversal of 122123111299 is 992111321221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 992111321221 = 1039 ⋅954871339.

It is a cyclic number.

It is not a de Polignac number, because 122123111299 - 2⁵ = 122123111267 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122123111239) 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, 8723079372 + ... + 8723079385.

It is an arithmetic number, because the mean of its divisors is an integer number (34892317516).

Almost surely, 2^122123111299 is an apocalyptic number.

122123111299 is a deficient number, since it is larger than the sum of its proper divisors (17446158765).

122123111299 is an equidigital number, since it uses as much as digits as its factorization.

122123111299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17446158764.

The product of its digits is 3888, while the sum is 34.

The spelling of 122123111299 in words is "one hundred twenty-two billion, one hundred twenty-three million, one hundred eleven thousand, two hundred ninety-nine".