2121110221112 has 8 divisors (see below), whose sum is σ = 3977081664600. Its totient is φ = 1060555110552.

The previous prime is 2121110221099. The next prime is 2121110221147. The reversal of 2121110221112 is 2111220111212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 132569388812 + ... + 132569388827.

It is an arithmetic number, because the mean of its divisors is an integer number (497135208075).

Almost surely, 2^{2121110221112} is an apocalyptic number.

It is an amenable number.

2121110221112 is a deficient number, since it is larger than the sum of its proper divisors (1855971443488).

2121110221112 is a wasteful number, since it uses less digits than its factorization.

2121110221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265138777645 (or 265138777641 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2121110221112 its reverse (2111220111212), we get a palindrome (4232330332324).

The spelling of 2121110221112 in words is "two trillion, one hundred twenty-one billion, one hundred ten million, two hundred twenty-one thousand, one hundred twelve".