211971206000 has 40 divisors (see below), whose sum is σ = 512546380944. Its totient is φ = 84788481600.

The previous prime is 211971205987. The next prime is 211971206021. The reversal of 211971206000 is 602179112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52990802 + ... + 52994801.

Almost surely, 2^211971206000 is an apocalyptic number.

211971206000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211971206000 is an abundant number, since it is smaller than the sum of its proper divisors (300575174944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

211971206000 is a wasteful number, since it uses less digits than its factorization.

211971206000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105985626 (or 105985610 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 29.

The spelling of 211971206000 in words is "two hundred eleven billion, nine hundred seventy-one million, two hundred six thousand".