121445522 has 12 divisors (see below), whose sum is σ = 200234958. Its totient is φ = 55202400.

The previous prime is 121445491. The next prime is 121445537. The reversal of 121445522 is 225544121.

It can be written as a sum of positive squares in only one way, i.e., 121242121 + 203401 = 11011^2 + 451^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121445491 and 121445500.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 250679 + ... + 251162.

Almost surely, 2^121445522 is an apocalyptic number.

121445522 is a deficient number, since it is larger than the sum of its proper divisors (78789436).

121445522 is a wasteful number, since it uses less digits than its factorization.

121445522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 501865 (or 501854 counting only the distinct ones).

The product of its digits is 3200, while the sum is 26.

The square root of 121445522 is about 11020.2323931939. The cubic root of 121445522 is about 495.2150505916.

Adding to 121445522 its reverse (225544121), we get a palindrome (346989643).

The spelling of 121445522 in words is "one hundred twenty-one million, four hundred forty-five thousand, five hundred twenty-two".