2121302103312 has 80 divisors (see below), whose sum is σ = 6264901715072. Its totient is φ = 605891819520.

The previous prime is 2121302103301. The next prime is 2121302103367. The reversal of 2121302103312 is 2133012031212.

It is a super-2 number, since 2×2121302103312² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37218 + ... + 2060094.

Almost surely, 2^{2121302103312} is an apocalyptic number.

It is an amenable number.

2121302103312 is an abundant number, since it is smaller than the sum of its proper divisors (4143599611760).

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

2121302103312 is a wasteful number, since it uses less digits than its factorization.

2121302103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2026016 (or 2026010 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2121302103312 its reverse (2133012031212), we get a palindrome (4254314134524).

The spelling of 2121302103312 in words is "two trillion, one hundred twenty-one billion, three hundred two million, one hundred three thousand, three hundred twelve".