121224043 has 8 divisors (see below), whose sum is σ = 125608320. Its totient is φ = 116869440.

The previous prime is 121224029. The next prime is 121224067. The reversal of 121224043 is 340422121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121224043 - 2²⁵ = 87669611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121224043.

It is not an unprimeable number, because it can be changed into a prime (121224013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 15607.

It is an arithmetic number, because the mean of its divisors is an integer number (15701040).

Almost surely, 2^121224043 is an apocalyptic number.

121224043 is a deficient number, since it is larger than the sum of its proper divisors (4384277).

121224043 is a wasteful number, since it uses less digits than its factorization.

121224043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14837.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 121224043 is about 11010.1790630307. The cubic root of 121224043 is about 494.9138278047.

Adding to 121224043 its reverse (340422121), we get a palindrome (461646164).

The spelling of 121224043 in words is "one hundred twenty-one million, two hundred twenty-four thousand, forty-three".