2121102210112 has 28 divisors (see below), whose sum is σ = 4209606077596. Its totient is φ = 1060414064640.

The previous prime is 2121102210067. The next prime is 2121102210163. The reversal of 2121102210112 is 2110122011212.

It can be written as a sum of positive squares in 2 ways, for example, as 1581899845696 + 539202364416 = 1257736^2 + 734304^2 .

It is a Harshad number since it is a multiple of its sum of digits (16).

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, 1641189 + ... + 2633572.

Almost surely, 2^{2121102210112} is an apocalyptic number.

It is an amenable number.

2121102210112 is a deficient number, since it is larger than the sum of its proper divisors (2088503867484).

2121102210112 is an equidigital number, since it uses as much as digits as its factorization.

2121102210112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4282526 (or 4282516 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 2121102210112 its reverse (2110122011212), we get a palindrome (4231224221324).

The spelling of 2121102210112 in words is "two trillion, one hundred twenty-one billion, one hundred two million, two hundred ten thousand, one hundred twelve".