2105525122 has 4 divisors (see below), whose sum is σ = 3158287686. Its totient is φ = 1052762560.

The previous prime is 2105525119. The next prime is 2105525171. The reversal of 2105525122 is 2215255012.

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., 1491427161 + 614097961 = 38619^2 + 24781^2 .

It is a super-2 number, since 2×2105525122² = 8866472078746229768, which contains 22 as substring.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 526381279 + ... + 526381282.

Almost surely, 2^2105525122 is an apocalyptic number.

2105525122 is a deficient number, since it is larger than the sum of its proper divisors (1052762564).

2105525122 is a wasteful number, since it uses less digits than its factorization.

2105525122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052762563.

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

The square root of 2105525122 is about 45886.0013729678. The cubic root of 2105525122 is about 1281.7012538858.

The spelling of 2105525122 in words is "two billion, one hundred five million, five hundred twenty-five thousand, one hundred twenty-two".