121350224 has 10 divisors (see below), whose sum is σ = 235116090. Its totient is φ = 60675104.

The previous prime is 121350223. The next prime is 121350253. The reversal of 121350224 is 422053121.

It can be written as a sum of positive squares in only one way, i.e., 110670400 + 10679824 = 10520^2 + 3268^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121350196 and 121350205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121350221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3792179 + ... + 3792210.

It is an arithmetic number, because the mean of its divisors is an integer number (23511609).

Almost surely, 2^121350224 is an apocalyptic number.

It is an amenable number.

121350224 is a deficient number, since it is larger than the sum of its proper divisors (113765866).

121350224 is an equidigital number, since it uses as much as digits as its factorization.

121350224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584397 (or 7584391 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 121350224 is about 11015.9077701295. The cubic root of 121350224 is about 495.0854853551.

The spelling of 121350224 in words is "one hundred twenty-one million, three hundred fifty thousand, two hundred twenty-four".