121522444 has 12 divisors (see below), whose sum is σ = 212750944. Its totient is φ = 60736464.

The previous prime is 121522439. The next prime is 121522447. The reversal of 121522444 is 444225121.

It is not an unprimeable number, because it can be changed into a prime (121522447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8989 + ... + 17995.

Almost surely, 2^121522444 is an apocalyptic number.

It is an amenable number.

121522444 is a deficient number, since it is larger than the sum of its proper divisors (91228500).

121522444 is a wasteful number, since it uses less digits than its factorization.

121522444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12384 (or 12382 counting only the distinct ones).

The product of its digits is 2560, while the sum is 25.

The square root of 121522444 is about 11023.7218760272. The cubic root of 121522444 is about 495.3195827632.

Adding to 121522444 its reverse (444225121), we get a palindrome (565747565).

The spelling of 121522444 in words is "one hundred twenty-one million, five hundred twenty-two thousand, four hundred forty-four".