2121211122112 has 14 divisors (see below), whose sum is σ = 4209278320568. Its totient is φ = 1060605561024.

The previous prime is 2121211122109. The next prime is 2121211122131. The reversal of 2121211122112 is 2112211121212.

It is a happy number.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 2121211122112.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 16571961828 + ... + 16571961955.

Almost surely, 2^{2121211122112} is an apocalyptic number.

It is an amenable number.

2121211122112 is a deficient number, since it is larger than the sum of its proper divisors (2088067198456).

2121211122112 is an equidigital number, since it uses as much as digits as its factorization.

2121211122112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33143923795 (or 33143923785 counting only the distinct ones).

The product of its digits is 64, while the sum is 19.

Adding to 2121211122112 its reverse (2112211121212), we get a palindrome (4233422243324).

The spelling of 2121211122112 in words is "two trillion, one hundred twenty-one billion, two hundred eleven million, one hundred twenty-two thousand, one hundred twelve".