121224127 has 8 divisors (see below), whose sum is σ = 128919600. Its totient is φ = 113591424.

The previous prime is 121224113. The next prime is 121224133. The reversal of 121224127 is 721422121.

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 121224127 - 2¹⁵ = 121191359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 121224098 and 121224107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121224107) 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, 11677 + ... + 19462.

It is an arithmetic number, because the mean of its divisors is an integer number (16114950).

Almost surely, 2^121224127 is an apocalyptic number.

121224127 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

121224127 is a deficient number, since it is larger than the sum of its proper divisors (7695473).

121224127 is a wasteful number, since it uses less digits than its factorization.

121224127 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31385.

The product of its digits is 448, while the sum is 22.

The square root of 121224127 is about 11010.1828776819. The cubic root of 121224127 is about 494.9139421185.

Adding to 121224127 its reverse (721422121), we get a palindrome (842646248).

The spelling of 121224127 in words is "one hundred twenty-one million, two hundred twenty-four thousand, one hundred twenty-seven".