2100210122 has 8 divisors (see below), whose sum is σ = 3161688996. Its totient is φ = 1046313792.

The previous prime is 2100210061. The next prime is 2100210143. The reversal of 2100210122 is 2210120012.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1694227921 + 405982201 = 41161^2 + 20149^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1894943 + ... + 1896050.

Almost surely, 2^2100210122 is an apocalyptic number.

2100210122 is a deficient number, since it is larger than the sum of its proper divisors (1061478874).

2100210122 is a wasteful number, since it uses less digits than its factorization.

2100210122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3791272.

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 2100210122 is about 45828.0495111891. The cubic root of 2100210122 is about 1280.6218743337.

Adding to 2100210122 its reverse (2210120012), we get a palindrome (4310330134).

The spelling of 2100210122 in words is "two billion, one hundred million, two hundred ten thousand, one hundred twenty-two".