2121010130 has 8 divisors (see below), whose sum is σ = 3817818252. Its totient is φ = 848404048.

The previous prime is 2121010123. The next prime is 2121010189. The reversal of 2121010130 is 310101212.

It can be written as a sum of positive squares in 2 ways, for example, as 1943134561 + 177875569 = 44081^2 + 13337^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 106050497 + ... + 106050516.

Almost surely, 2^2121010130 is an apocalyptic number.

2121010130 is a deficient number, since it is larger than the sum of its proper divisors (1696808122).

2121010130 is a wasteful number, since it uses less digits than its factorization.

2121010130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212101020.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2121010130 is about 46054.4257373816. The cubic root of 2121010130 is about 1284.8356575445.

Adding to 2121010130 its reverse (310101212), we get a palindrome (2431111342).

The spelling of 2121010130 in words is "two billion, one hundred twenty-one million, ten thousand, one hundred thirty".