221122212199 has 4 divisors (see below), whose sum is σ = 252711099664. Its totient is φ = 189533324736.

The previous prime is 221122212169. The next prime is 221122212203. The reversal of 221122212199 is 991212221122.

It is a happy number.

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

It is not a de Polignac number, because 221122212199 - 2¹⁹ = 221121687911 is a prime.

It is a super-3 number, since 3×221122212199³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221122212169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15794443722 + ... + 15794443735.

It is an arithmetic number, because the mean of its divisors is an integer number (63177774916).

Almost surely, 2^221122212199 is an apocalyptic number.

221122212199 is a deficient number, since it is larger than the sum of its proper divisors (31588887465).

221122212199 is an equidigital number, since it uses as much as digits as its factorization.

221122212199 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31588887464.

The product of its digits is 5184, while the sum is 34.

The spelling of 221122212199 in words is "two hundred twenty-one billion, one hundred twenty-two million, two hundred twelve thousand, one hundred ninety-nine".