121847224 has 8 divisors (see below), whose sum is σ = 228463560. Its totient is φ = 60923608.

The previous prime is 121847207. The next prime is 121847233. The reversal of 121847224 is 422748121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-3 number, since 3×121847224³ (a number of 25 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7615444 + ... + 7615459.

It is an arithmetic number, because the mean of its divisors is an integer number (28557945).

Almost surely, 2^121847224 is an apocalyptic number.

It is an amenable number.

121847224 is a deficient number, since it is larger than the sum of its proper divisors (106616336).

121847224 is a wasteful number, since it uses less digits than its factorization.

121847224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15230909 (or 15230905 counting only the distinct ones).

The product of its digits is 7168, while the sum is 31.

The square root of 121847224 is about 11038.4430061490. The cubic root of 121847224 is about 495.7604527456.

The spelling of 121847224 in words is "one hundred twenty-one million, eight hundred forty-seven thousand, two hundred twenty-four".