211863972230001 has 48 divisors (see below), whose sum is σ = 376749611894656. Its totient is φ = 111721997945088.

The previous prime is 211863972229999. The next prime is 211863972230021. The reversal of 211863972230001 is 100032279368112.

It is a happy number.

211863972230001 is a `hidden beast` number, since 2 + 1 + 1 + 8 + 639 + 7 + 2 + 2 + 3 + 0 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 211863972230001 - 2¹ = 211863972229999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (211863972230021) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32206375 + ... + 38222748.

Almost surely, 2^{211863972230001} is an apocalyptic number.

211863972230001 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

211863972230001 is a deficient number, since it is larger than the sum of its proper divisors (164885639664655).

211863972230001 is a wasteful number, since it uses less digits than its factorization.

211863972230001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70432822 (or 70432819 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 211863972230001 in words is "two hundred eleven trillion, eight hundred sixty-three billion, nine hundred seventy-two million, two hundred thirty thousand, one".