121323401224 has 128 divisors (see below), whose sum is σ = 249222758400. Its totient is φ = 55198091520.

The previous prime is 121323401219. The next prime is 121323401231. The reversal of 121323401224 is 422104323121.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 138338674 + ... + 138339550.

It is an arithmetic number, because the mean of its divisors is an integer number (1947052800).

Almost surely, 2^121323401224 is an apocalyptic number.

It is an amenable number.

121323401224 is an abundant number, since it is smaller than the sum of its proper divisors (127899357176).

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

121323401224 is a wasteful number, since it uses less digits than its factorization.

121323401224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1323 (or 1319 counting only the distinct ones).

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

Adding to 121323401224 its reverse (422104323121), we get a palindrome (543427724345).

The spelling of 121323401224 in words is "one hundred twenty-one billion, three hundred twenty-three million, four hundred one thousand, two hundred twenty-four".