121224522 has 24 divisors (see below), whose sum is σ = 255885696. Its totient is φ = 38280744.

The previous prime is 121224517. The next prime is 121224529. The reversal of 121224522 is 225422121.

It is not an unprimeable number, because it can be changed into a prime (121224529) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25818 + ... + 30149.

It is an arithmetic number, because the mean of its divisors is an integer number (10661904).

Almost surely, 2^121224522 is an apocalyptic number.

121224522 is an abundant number, since it is smaller than the sum of its proper divisors (134661174).

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

121224522 is a wasteful number, since it uses less digits than its factorization.

121224522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56010 (or 55991 counting only the distinct ones).

The product of its digits is 640, while the sum is 21.

The square root of 121224522 is about 11010.2008156073. The cubic root of 121224522 is about 494.9144796650.

Adding to 121224522 its reverse (225422121), we get a palindrome (346646643).

The spelling of 121224522 in words is "one hundred twenty-one million, two hundred twenty-four thousand, five hundred twenty-two".