121121552 has 20 divisors (see below), whose sum is σ = 236468496. Its totient is φ = 60097440.

The previous prime is 121121543. The next prime is 121121573. The reversal of 121121552 is 255121121.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26798 + ... + 30989.

Almost surely, 2^121121552 is an apocalyptic number.

It is an amenable number.

121121552 is a deficient number, since it is larger than the sum of its proper divisors (115346944).

121121552 is a wasteful number, since it uses less digits than its factorization.

121121552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57926 (or 57920 counting only the distinct ones).

The product of its digits is 200, while the sum is 20.

The square root of 121121552 is about 11005.5237040315. The cubic root of 121121552 is about 494.7743106105.

Adding to 121121552 its reverse (255121121), we get a palindrome (376242673).

The spelling of 121121552 in words is "one hundred twenty-one million, one hundred twenty-one thousand, five hundred fifty-two".