891322223199 has 8 divisors (see below), whose sum is σ = 1188453600000. Its totient is φ = 594202830936.

The previous prime is 891322223191. The next prime is 891322223201. The reversal of 891322223199 is 991322223198.

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

It is not a de Polignac number, because 891322223199 - 2³ = 891322223191 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (891322223191) 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, 2821137 + ... + 3121130.

It is an arithmetic number, because the mean of its divisors is an integer number (148556700000).

Almost surely, 2^891322223199 is an apocalyptic number.

891322223199 is a deficient number, since it is larger than the sum of its proper divisors (297131376801).

891322223199 is a wasteful number, since it uses less digits than its factorization.

891322223199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5992269.

The product of its digits is 839808, while the sum is 51.

Subtracting 891322223199 from its reverse (991322223198), we obtain a palindrome (99999999999).

The spelling of 891322223199 in words is "eight hundred ninety-one billion, three hundred twenty-two million, two hundred twenty-three thousand, one hundred ninety-nine".