123199122 has 16 divisors (see below), whose sum is σ = 253058112. Its totient is φ = 39956400.

The previous prime is 123199117. The next prime is 123199123. The reversal of 123199122 is 221991321.

It is a self number, because there is not a number n which added to its sum of digits gives 123199122.

It is not an unprimeable number, because it can be changed into a prime (123199123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 277254 + ... + 277697.

It is an arithmetic number, because the mean of its divisors is an integer number (15816132).

Almost surely, 2^123199122 is an apocalyptic number.

123199122 is an abundant number, since it is smaller than the sum of its proper divisors (129858990).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123199122 is a wasteful number, since it uses less digits than its factorization.

123199122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 554993.

The product of its digits is 1944, while the sum is 30.

The square root of 123199122 is about 11099.5099891842. The cubic root of 123199122 is about 497.5872049013.

It can be divided in two parts, 123199 and 122, that added together give a palindrome (123321).

The spelling of 123199122 in words is "one hundred twenty-three million, one hundred ninety-nine thousand, one hundred twenty-two".