1220222219 has 2 divisors, whose sum is σ = 1220222220. Its totient is φ = 1220222218.

The previous prime is 1220222177. The next prime is 1220222221. The reversal of 1220222219 is 9122220221.

It is a strong prime.

It is an emirp because it is prime and its reverse (9122220221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1220222219 - 2⁸ = 1220221963 is a prime.

It is a super-2 number, since 2×1220222219² = 2977884527482567922, which contains 22 as substring.

Together with 1220222221, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1220222194 and 1220222203.

It is not a weakly prime, because it can be changed into another prime (1220222249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610111109 + 610111110.

It is an arithmetic number, because the mean of its divisors is an integer number (610111110).

Almost surely, 2^1220222219 is an apocalyptic number.

1220222219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220222219 is an equidigital number, since it uses as much as digits as its factorization.

1220222219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 1220222219 is about 34931.6793040358. The cubic root of 1220222219 is about 1068.5946026059.

The spelling of 1220222219 in words is "one billion, two hundred twenty million, two hundred twenty-two thousand, two hundred nineteen".