2121233131112 has 16 divisors (see below), whose sum is σ = 4005925879200. Its totient is φ = 1052986230000.

The previous prime is 2121233131037. The next prime is 2121233131151. The reversal of 2121233131112 is 2111313321212.

It is a happy number.

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 3 ways as a sum of consecutive naturals, for example, 953790764 + ... + 953792987.

It is an arithmetic number, because the mean of its divisors is an integer number (250370367450).

Almost surely, 2^{2121233131112} is an apocalyptic number.

It is an amenable number.

2121233131112 is a deficient number, since it is larger than the sum of its proper divisors (1884692748088).

2121233131112 is a wasteful number, since it uses less digits than its factorization.

2121233131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1907583896 (or 1907583892 counting only the distinct ones).

The product of its digits is 432, while the sum is 23.

Adding to 2121233131112 its reverse (2111313321212), we get a palindrome (4232546452324).

The spelling of 2121233131112 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-three million, one hundred thirty-one thousand, one hundred twelve".