2100109922 has 4 divisors (see below), whose sum is σ = 3150164886. Its totient is φ = 1050054960.

The previous prime is 2100109903. The next prime is 2100109927. The reversal of 2100109922 is 2299010012.

It is a happy number.

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., 1803615961 + 296493961 = 42469^2 + 17219^2 .

It is a junction number, because it is equal to n+sod(n) for n = 2100109891 and 2100109900.

It is not an unprimeable number, because it can be changed into a prime (2100109927) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 525027479 + ... + 525027482.

Almost surely, 2^2100109922 is an apocalyptic number.

2100109922 is a deficient number, since it is larger than the sum of its proper divisors (1050054964).

2100109922 is a wasteful number, since it uses less digits than its factorization.

2100109922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050054963.

The product of its (nonzero) digits is 648, while the sum is 26.

The square root of 2100109922 is about 45826.9562812107. The cubic root of 2100109922 is about 1280.6015080616.

Adding to 2100109922 its reverse (2299010012), we get a palindrome (4399119934).

The spelling of 2100109922 in words is "two billion, one hundred million, one hundred nine thousand, nine hundred twenty-two".