211722753212 has 48 divisors (see below), whose sum is σ = 377698780032. Its totient is φ = 103832616960.

The previous prime is 211722753199. The next prime is 211722753247. The reversal of 211722753212 is 212357227112.

211722753212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20288348 + ... + 20298780.

It is an arithmetic number, because the mean of its divisors is an integer number (7868724584).

Almost surely, 2^211722753212 is an apocalyptic number.

It is an amenable number.

211722753212 is a deficient number, since it is larger than the sum of its proper divisors (165976026820).

211722753212 is a wasteful number, since it uses less digits than its factorization.

211722753212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10998 (or 10996 counting only the distinct ones).

The product of its digits is 23520, while the sum is 35.

The spelling of 211722753212 in words is "two hundred eleven billion, seven hundred twenty-two million, seven hundred fifty-three thousand, two hundred twelve".