121323224 has 16 divisors (see below), whose sum is σ = 248161320. Its totient is φ = 55146880.

The previous prime is 121323221. The next prime is 121323233. The reversal of 121323224 is 422323121.

It is a junction number, because it is equal to n+sod(n) for n = 121323196 and 121323205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121323221) 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, 689249 + ... + 689424.

Almost surely, 2^121323224 is an apocalyptic number.

It is an amenable number.

121323224 is an abundant number, since it is smaller than the sum of its proper divisors (126838096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121323224 is a wasteful number, since it uses less digits than its factorization.

121323224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1378690 (or 1378686 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 121323224 is about 11014.6822014981. The cubic root of 121323224 is about 495.0487643691.

Adding to 121323224 its reverse (422323121), we get a palindrome (543646345).

The spelling of 121323224 in words is "one hundred twenty-one million, three hundred twenty-three thousand, two hundred twenty-four".