2120330555 has 32 divisors (see below), whose sum is σ = 3194035200. Its totient is φ = 1317520512.

The previous prime is 2120330521. The next prime is 2120330557. The reversal of 2120330555 is 5550330212.

It is not a de Polignac number, because 2120330555 - 2⁸ = 2120330299 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2120330557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54020 + ... + 84609.

It is an arithmetic number, because the mean of its divisors is an integer number (99813600).

Almost surely, 2^2120330555 is an apocalyptic number.

2120330555 is a deficient number, since it is larger than the sum of its proper divisors (1073704645).

2120330555 is a wasteful number, since it uses less digits than its factorization.

2120330555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138683.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 2120330555 is about 46047.0471908895. The cubic root of 2120330555 is about 1284.6984217611.

Adding to 2120330555 its reverse (5550330212), we get a palindrome (7670660767).

The spelling of 2120330555 in words is "two billion, one hundred twenty million, three hundred thirty thousand, five hundred fifty-five".