221231131199 has 8 divisors (see below), whose sum is σ = 238252563360. Its totient is φ = 204210220896.

The previous prime is 221231131189. The next prime is 221231131217. The reversal of 221231131199 is 991131132122.

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 221231131199 - 2²⁸ = 220962695743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221231131189) 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, 1614134 + ... + 1745820.

It is an arithmetic number, because the mean of its divisors is an integer number (29781570420).

Almost surely, 2^221231131199 is an apocalyptic number.

221231131199 is a deficient number, since it is larger than the sum of its proper divisors (17021432161).

221231131199 is a wasteful number, since it uses less digits than its factorization.

221231131199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260929.

The product of its digits is 5832, while the sum is 35.

The spelling of 221231131199 in words is "two hundred twenty-one billion, two hundred thirty-one million, one hundred thirty-one thousand, one hundred ninety-nine".