123221000232 has 96 divisors (see below), whose sum is σ = 376615980000. Its totient is φ = 36052114560.

The previous prime is 123221000173. The next prime is 123221000233. The reversal of 123221000232 is 232000122321.

123221000232 is a `hidden beast` number, since 12 + 322 + 100 + 0 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (123221000233) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2659482 + ... + 2705417.

It is an arithmetic number, because the mean of its divisors is an integer number (3923083125).

Almost surely, 2^123221000232 is an apocalyptic number.

123221000232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123221000232 is an abundant number, since it is smaller than the sum of its proper divisors (253394979768).

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

123221000232 is a wasteful number, since it uses less digits than its factorization.

123221000232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5364951 (or 5364944 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 123221000232 its reverse (232000122321), we get a palindrome (355221122553).

The spelling of 123221000232 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred thirty-two", and thus it is an aban number.