2120105055 has 32 divisors (see below), whose sum is σ = 3448004544. Its totient is φ = 1112196096.

The previous prime is 2120105047. The next prime is 2120105083. The reversal of 2120105055 is 5505010212.

It is not a de Polignac number, because 2120105055 - 2³ = 2120105047 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 432277 + ... + 437153.

It is an arithmetic number, because the mean of its divisors is an integer number (107750142).

Almost surely, 2^2120105055 is an apocalyptic number.

2120105055 is a deficient number, since it is larger than the sum of its proper divisors (1327899489).

2120105055 is a wasteful number, since it uses less digits than its factorization.

2120105055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5355.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 2120105055 is about 46044.5985431516. The cubic root of 2120105055 is about 1284.6528770127.

Adding to 2120105055 its reverse (5505010212), we get a palindrome (7625115267).

The spelling of 2120105055 in words is "two billion, one hundred twenty million, one hundred five thousand, fifty-five".