123221132122 has 16 divisors (see below), whose sum is σ = 204396700032. Its totient is φ = 55242349920.

The previous prime is 123221132101. The next prime is 123221132137. The reversal of 123221132122 is 221231122321.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 123221132093 and 123221132102.

It is an unprimeable number.

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, 38361138 + ... + 38364349.

It is an arithmetic number, because the mean of its divisors is an integer number (12774793752).

Almost surely, 2^123221132122 is an apocalyptic number.

123221132122 is a deficient number, since it is larger than the sum of its proper divisors (81175567910).

123221132122 is a wasteful number, since it uses less digits than its factorization.

123221132122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76725573.

The product of its digits is 576, while the sum is 22.

Adding to 123221132122 its reverse (221231122321), we get a palindrome (344452254443).

The spelling of 123221132122 in words is "one hundred twenty-three billion, two hundred twenty-one million, one hundred thirty-two thousand, one hundred twenty-two".