121224902 has 8 divisors (see below), whose sum is σ = 191407800. Its totient is φ = 57422304.

The previous prime is 121224889. The next prime is 121224907. The reversal of 121224902 is 209422121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121224907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1595027 + ... + 1595102.

It is an arithmetic number, because the mean of its divisors is an integer number (23925975).

Almost surely, 2^121224902 is an apocalyptic number.

121224902 is a deficient number, since it is larger than the sum of its proper divisors (70182898).

121224902 is a wasteful number, since it uses less digits than its factorization.

121224902 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3190150.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 121224902 is about 11010.2180723181. The cubic root of 121224902 is about 494.9149967972.

The spelling of 121224902 in words is "one hundred twenty-one million, two hundred twenty-four thousand, nine hundred two".