2120225105 has 16 divisors (see below), whose sum is σ = 2692224000. Its totient is φ = 1598480640.

The previous prime is 2120225089. The next prime is 2120225137. The reversal of 2120225105 is 5015220212.

It is a happy number.

It is not a de Polignac number, because 2120225105 - 2⁴ = 2120225089 is a prime.

It is a super-2 number, since 2×2120225105² = 8990708991744522050, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40280 + ... + 76569.

It is an arithmetic number, because the mean of its divisors is an integer number (168264000).

Almost surely, 2^2120225105 is an apocalyptic number.

It is an amenable number.

2120225105 is a deficient number, since it is larger than the sum of its proper divisors (571998895).

2120225105 is a wasteful number, since it uses less digits than its factorization.

2120225105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117064.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 2120225105 is about 46045.9021520917. The cubic root of 2120225105 is about 1284.6771241865.

Adding to 2120225105 its reverse (5015220212), we get a palindrome (7135445317).

The spelling of 2120225105 in words is "two billion, one hundred twenty million, two hundred twenty-five thousand, one hundred five".