2105045122 has 4 divisors (see below), whose sum is σ = 3157567686. Its totient is φ = 1052522560.

The previous prime is 2105045113. The next prime is 2105045147. The reversal of 2105045122 is 2215405012.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 1942253041 + 162792081 = 44071^2 + 12759^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2105045093 and 2105045102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 526261279 + ... + 526261282.

Almost surely, 2^2105045122 is an apocalyptic number.

2105045122 is a deficient number, since it is larger than the sum of its proper divisors (1052522564).

2105045122 is a wasteful number, since it uses less digits than its factorization.

2105045122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052522563.

The product of its (nonzero) digits is 800, while the sum is 22.

The square root of 2105045122 is about 45880.7707215125. The cubic root of 2105045122 is about 1281.6038493077.

The spelling of 2105045122 in words is "two billion, one hundred five million, forty-five thousand, one hundred twenty-two".