211271442997 has 8 divisors (see below), whose sum is σ = 223703424000. Its totient is φ = 198839934144.

The previous prime is 211271442881. The next prime is 211271443007. The reversal of 211271442997 is 799244172112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211271442997 - 2¹¹ = 211271440949 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 211271442997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211271142997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269004 + ... + 1425802.

It is an arithmetic number, because the mean of its divisors is an integer number (27962928000).

Almost surely, 2^211271442997 is an apocalyptic number.

It is an amenable number.

211271442997 is a deficient number, since it is larger than the sum of its proper divisors (12431981003).

211271442997 is a wasteful number, since it uses less digits than its factorization.

211271442997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236075.

The product of its digits is 508032, while the sum is 49.

The spelling of 211271442997 in words is "two hundred eleven billion, two hundred seventy-one million, four hundred forty-two thousand, nine hundred ninety-seven".