121215324 has 12 divisors (see below), whose sum is σ = 282835784. Its totient is φ = 40405104.

The previous prime is 121215317. The next prime is 121215343. The reversal of 121215324 is 423512121.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 121215324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5050627 + ... + 5050650.

Almost surely, 2^121215324 is an apocalyptic number.

It is an amenable number.

121215324 is an abundant number, since it is smaller than the sum of its proper divisors (161620460).

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

121215324 is a wasteful number, since it uses less digits than its factorization.

121215324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10101284 (or 10101282 counting only the distinct ones).

The product of its digits is 480, while the sum is 21.

The square root of 121215324 is about 11009.7831041306. The cubic root of 121215324 is about 494.9019620147.

Adding to 121215324 its reverse (423512121), we get a palindrome (544727445).

The spelling of 121215324 in words is "one hundred twenty-one million, two hundred fifteen thousand, three hundred twenty-four".