211121020000124 has 24 divisors (see below), whose sum is σ = 399350121309888. Its totient is φ = 97080911830080.

The previous prime is 211121020000069. The next prime is 211121020000139. The reversal of 211121020000124 is 421000020121112.

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 in 7 ways as a sum of consecutive naturals, for example, 7490797007 + ... + 7490825190.

It is an arithmetic number, because the mean of its divisors is an integer number (16639588387912).

Almost surely, 2^{211121020000124} is an apocalyptic number.

It is an amenable number.

211121020000124 is a deficient number, since it is larger than the sum of its proper divisors (188229101309764).

211121020000124 is a wasteful number, since it uses less digits than its factorization.

211121020000124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14981622485 (or 14981622483 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 211121020000124 its reverse (421000020121112), we get a palindrome (632121040121236).

The spelling of 211121020000124 in words is "two hundred eleven trillion, one hundred twenty-one billion, twenty million, one hundred twenty-four", and thus it is an aban number.