211121121201112 has 8 divisors (see below), whose sum is σ = 395852102252100. Its totient is φ = 105560560600552.

The previous prime is 211121121201071. The next prime is 211121121201121. The reversal of 211121121201112 is 211102121121112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211121121201112.

It is a congruent 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 as a sum of consecutive naturals, namely, 13195070075062 + ... + 13195070075077.

Almost surely, 2^{211121121201112} is an apocalyptic number.

It is an amenable number.

211121121201112 is a deficient number, since it is larger than the sum of its proper divisors (184730981050988).

211121121201112 is a wasteful number, since it uses less digits than its factorization.

211121121201112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26390140150145 (or 26390140150141 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 211121121201112 its reverse (211102121121112), we get a palindrome (422223242322224).

The spelling of 211121121201112 in words is "two hundred eleven trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred one thousand, one hundred twelve".