123122122 has 4 divisors (see below), whose sum is σ = 184683186. Its totient is φ = 61561060.

The previous prime is 123122119. The next prime is 123122137. The reversal of 123122122 is 221221321.

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: 221221321 = 157 ⋅1409053.

It can be written as a sum of positive squares in only one way, i.e., 113443801 + 9678321 = 10651^2 + 3111^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123122096 and 123122105.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30780529 + ... + 30780532.

Almost surely, 2^123122122 is an apocalyptic number.

123122122 is a deficient number, since it is larger than the sum of its proper divisors (61561064).

123122122 is an equidigital number, since it uses as much as digits as its factorization.

123122122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61561063.

The product of its digits is 96, while the sum is 16.

The square root of 123122122 is about 11096.0408254476. The cubic root of 123122122 is about 497.4835185571.

Adding to 123122122 its reverse (221221321), we get a palindrome (344343443).

The spelling of 123122122 in words is "one hundred twenty-three million, one hundred twenty-two thousand, one hundred twenty-two".