121219385 has 24 divisors (see below), whose sum is σ = 169997256. Its totient is φ = 82736640.

The previous prime is 121219379. The next prime is 121219421. The reversal of 121219385 is 583912121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 24078649 + 97140736 = 4907^2 + 9856^2 .

It is a de Polignac number, because none of the positive numbers 2^k-121219385 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58019 + ... + 60071.

It is an arithmetic number, because the mean of its divisors is an integer number (7083219).

Almost surely, 2^121219385 is an apocalyptic number.

It is an amenable number.

121219385 is a deficient number, since it is larger than the sum of its proper divisors (48777871).

121219385 is a wasteful number, since it uses less digits than its factorization.

121219385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2313 (or 2306 counting only the distinct ones).

The product of its digits is 4320, while the sum is 32.

The square root of 121219385 is about 11009.9675294707. The cubic root of 121219385 is about 494.9074887483.

The spelling of 121219385 in words is "one hundred twenty-one million, two hundred nineteen thousand, three hundred eighty-five".