2121055504 has 20 divisors (see below), whose sum is σ = 4110268176. Its totient is φ = 1060341152.

The previous prime is 2121055457. The next prime is 2121055529. The reversal of 2121055504 is 4055501212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 150087 + ... + 163609.

Almost surely, 2^2121055504 is an apocalyptic number.

It is an amenable number.

2121055504 is a deficient number, since it is larger than the sum of its proper divisors (1989212672).

2121055504 is a wasteful number, since it uses less digits than its factorization.

2121055504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23334 (or 23328 counting only the distinct ones).

The product of its (nonzero) digits is 2000, while the sum is 25.

The square root of 2121055504 is about 46054.9183475555. The cubic root of 2121055504 is about 1284.8448194868.

Adding to 2121055504 its reverse (4055501212), we get a palindrome (6176556716).

The spelling of 2121055504 in words is "two billion, one hundred twenty-one million, fifty-five thousand, five hundred four".