221100312232199 has 4 divisors (see below), whose sum is σ = 223289424234600. Its totient is φ = 218911200229800.

The previous prime is 221100312232187. The next prime is 221100312232211. The reversal of 221100312232199 is 991232213001122.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (221100312232187) and next prime (221100312232211).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-221100312232199 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 (221100312231199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1094556001049 + ... + 1094556001250.

It is an arithmetic number, because the mean of its divisors is an integer number (55822356058650).

Almost surely, 2^{221100312232199} is an apocalyptic number.

221100312232199 is a deficient number, since it is larger than the sum of its proper divisors (2189112002401).

221100312232199 is a wasteful number, since it uses less digits than its factorization.

221100312232199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189112002400.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 221100312232199 in words is "two hundred twenty-one trillion, one hundred billion, three hundred twelve million, two hundred thirty-two thousand, one hundred ninety-nine".