121343224 has 8 divisors (see below), whose sum is σ = 227518560. Its totient is φ = 60671608.

The previous prime is 121343191. The next prime is 121343227. The reversal of 121343224 is 422343121.

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

It is a junction number, because it is equal to n+sod(n) for n = 121343195 and 121343204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121343227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7583944 + ... + 7583959.

It is an arithmetic number, because the mean of its divisors is an integer number (28439820).

Almost surely, 2^121343224 is an apocalyptic number.

It is an amenable number.

121343224 is a deficient number, since it is larger than the sum of its proper divisors (106175336).

121343224 is a wasteful number, since it uses less digits than its factorization.

121343224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15167909 (or 15167905 counting only the distinct ones).

The product of its digits is 1152, while the sum is 22.

The square root of 121343224 is about 11015.5900432069. The cubic root of 121343224 is about 495.0759656225.

Adding to 121343224 its reverse (422343121), we get a palindrome (543686345).

The spelling of 121343224 in words is "one hundred twenty-one million, three hundred forty-three thousand, two hundred twenty-four".