2121310110 has 32 divisors (see below), whose sum is σ = 5107227552. Its totient is φ = 563895680.

The previous prime is 2121310091. The next prime is 2121310153. The reversal of 2121310110 is 110131212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102021 + ... + 121040.

It is an arithmetic number, because the mean of its divisors is an integer number (159600861).

Almost surely, 2^2121310110 is an apocalyptic number.

2121310110 is an abundant number, since it is smaller than the sum of its proper divisors (2985917442).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121310110 is a wasteful number, since it uses less digits than its factorization.

2121310110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 223388.

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

The square root of 2121310110 is about 46057.6824210685. The cubic root of 2121310110 is about 1284.8962272429.

Adding to 2121310110 its reverse (110131212), we get a palindrome (2231441322).

The spelling of 2121310110 in words is "two billion, one hundred twenty-one million, three hundred ten thousand, one hundred ten".