121224563 has 2 divisors, whose sum is σ = 121224564. Its totient is φ = 121224562.

The previous prime is 121224547. The next prime is 121224599. The reversal of 121224563 is 365422121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121224563 - 2⁴ = 121224547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (121220563) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60612281 + 60612282.

It is an arithmetic number, because the mean of its divisors is an integer number (60612282).

Almost surely, 2^121224563 is an apocalyptic number.

121224563 is a deficient number, since it is larger than the sum of its proper divisors (1).

121224563 is an equidigital number, since it uses as much as digits as its factorization.

121224563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2880, while the sum is 26.

The square root of 121224563 is about 11010.2026775169. The cubic root of 121224563 is about 494.9145354609.

Adding to 121224563 its reverse (365422121), we get a palindrome (486646684).

The spelling of 121224563 in words is "one hundred twenty-one million, two hundred twenty-four thousand, five hundred sixty-three".