221222224219 has 4 divisors (see below), whose sum is σ = 221537805840. Its totient is φ = 220906642600.

The previous prime is 221222224207. The next prime is 221222224231. The reversal of 221222224219 is 912422222122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 912422222122 = 2 ⋅456211111061.

It is an interprime number because it is at equal distance from previous prime (221222224207) and next prime (221222224231).

It is a cyclic number.

It is not a de Polignac number, because 221222224219 - 2¹¹ = 221222222171 is a prime.

It is a super-2 number, since 2×221222224219² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221222224019) 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, 157789759 + ... + 157791160.

It is an arithmetic number, because the mean of its divisors is an integer number (55384451460).

Almost surely, 2^221222224219 is an apocalyptic number.

221222224219 is a deficient number, since it is larger than the sum of its proper divisors (315581621).

221222224219 is an equidigital number, since it uses as much as digits as its factorization.

221222224219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315581620.

The product of its digits is 9216, while the sum is 31.

The spelling of 221222224219 in words is "two hundred twenty-one billion, two hundred twenty-two million, two hundred twenty-four thousand, two hundred nineteen".