211065762213 has 24 divisors (see below), whose sum is σ = 321224904000. Its totient is φ = 133177500864.

The previous prime is 211065762191. The next prime is 211065762239. The reversal of 211065762213 is 312267560112.

211065762213 is a `hidden beast` number, since 2 + 1 + 10 + 6 + 5 + 7 + 622 + 13 = 666.

It is not a de Polignac number, because 211065762213 - 2⁹ = 211065761701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211065752213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 408945 + ... + 767702.

It is an arithmetic number, because the mean of its divisors is an integer number (13384371000).

Almost surely, 2^211065762213 is an apocalyptic number.

It is an amenable number.

211065762213 is a deficient number, since it is larger than the sum of its proper divisors (110159141787).

211065762213 is a wasteful number, since it uses less digits than its factorization.

211065762213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177721 (or 1177718 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The spelling of 211065762213 in words is "two hundred eleven billion, sixty-five million, seven hundred sixty-two thousand, two hundred thirteen".