221100312231199 has 2 divisors, whose sum is σ = 221100312231200. Its totient is φ = 221100312231198.

The previous prime is 221100312231191. The next prime is 221100312231401. The reversal of 221100312231199 is 991132213001122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221100312231199 - 2³ = 221100312231191 is a prime.

It is a super-2 number, since 2×221100312231199² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221100312231191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110550156115599 + 110550156115600.

It is an arithmetic number, because the mean of its divisors is an integer number (110550156115600).

Almost surely, 2^{221100312231199} is an apocalyptic number.

221100312231199 is a deficient number, since it is larger than the sum of its proper divisors (1).

221100312231199 is an equidigital number, since it uses as much as digits as its factorization.

221100312231199 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 221100312231199 in words is "two hundred twenty-one trillion, one hundred billion, three hundred twelve million, two hundred thirty-one thousand, one hundred ninety-nine".