221133299987 has 8 divisors (see below), whose sum is σ = 223174464000. Its totient is φ = 219101435784.

The previous prime is 221133299921. The next prime is 221133299993. The reversal of 221133299987 is 789992331122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221133299987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221133299917) 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, 2277173 + ... + 2372294.

It is an arithmetic number, because the mean of its divisors is an integer number (27896808000).

Almost surely, 2^221133299987 is an apocalyptic number.

221133299987 is a deficient number, since it is larger than the sum of its proper divisors (2041164013).

221133299987 is a wasteful number, since it uses less digits than its factorization.

221133299987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4649905.

The product of its digits is 2939328, while the sum is 56.

The spelling of 221133299987 in words is "two hundred twenty-one billion, one hundred thirty-three million, two hundred ninety-nine thousand, nine hundred eighty-seven".