2121122001112 has 16 divisors (see below), whose sum is σ = 3978324145800. Its totient is φ = 1060235562240.

The previous prime is 2121122001109. The next prime is 2121122001113. The reversal of 2121122001112 is 2111002211212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121122001113) by changing a digit.

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, 40652089 + ... + 40704232.

Almost surely, 2^{2121122001112} is an apocalyptic number.

It is an amenable number.

2121122001112 is a deficient number, since it is larger than the sum of its proper divisors (1857202144688).

2121122001112 is a wasteful number, since it uses less digits than its factorization.

2121122001112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81359586 (or 81359582 counting only the distinct ones).

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

Adding to 2121122001112 its reverse (2111002211212), we get a palindrome (4232124212324).

The spelling of 2121122001112 in words is "two trillion, one hundred twenty-one billion, one hundred twenty-two million, one thousand, one hundred twelve".