123221330 has 16 divisors (see below), whose sum is σ = 221944320. Its totient is φ = 49256112.

The previous prime is 123221297. The next prime is 123221341. The reversal of 123221330 is 33122321.

It is a junction number, because it is equal to n+sod(n) for n = 123221299 and 123221308.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17231 + ... + 23309.

It is an arithmetic number, because the mean of its divisors is an integer number (13871520).

Almost surely, 2^123221330 is an apocalyptic number.

123221330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123221330 is a deficient number, since it is larger than the sum of its proper divisors (98722990).

123221330 is a wasteful number, since it uses less digits than its factorization.

123221330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8113.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123221330 is about 11100.5103486281. The cubic root of 123221330 is about 497.6171016315.

Adding to 123221330 its reverse (33122321), we get a palindrome (156343651).

Subtracting from 123221330 its reverse (33122321), we obtain a palindrome (90099009).

The spelling of 123221330 in words is "one hundred twenty-three million, two hundred twenty-one thousand, three hundred thirty".