123321221224 has 32 divisors (see below), whose sum is σ = 236966264640. Its totient is φ = 60131478400.

The previous prime is 123321221197. The next prime is 123321221299. The reversal of 123321221224 is 422122123321.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 717159 + ... + 872329.

It is an arithmetic number, because the mean of its divisors is an integer number (7405195770).

Almost surely, 2^123321221224 is an apocalyptic number.

It is an amenable number.

123321221224 is a deficient number, since it is larger than the sum of its proper divisors (113645043416).

123321221224 is a wasteful number, since it uses less digits than its factorization.

123321221224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157641 (or 157637 counting only the distinct ones).

The product of its digits is 2304, while the sum is 25.

Adding to 123321221224 its reverse (422122123321), we get a palindrome (545443344545).

The spelling of 123321221224 in words is "one hundred twenty-three billion, three hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-four".