1222790219 has 8 divisors (see below), whose sum is σ = 1399926528. Its totient is φ = 1046266920.

The previous prime is 1222790197. The next prime is 1222790237. The reversal of 1222790219 is 9120972221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1222790219 - 2²⁰ = 1221741643 is a prime.

It is a super-2 number, since 2×1222790219² = 2990431839364135922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1222790119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 148967 + ... + 156960.

It is an arithmetic number, because the mean of its divisors is an integer number (174990816).

Almost surely, 2^1222790219 is an apocalyptic number.

1222790219 is a deficient number, since it is larger than the sum of its proper divisors (177136309).

1222790219 is an equidigital number, since it uses as much as digits as its factorization.

1222790219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306505.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 1222790219 is about 34968.4174506082. The cubic root of 1222790219 is about 1069.3437088181.

The spelling of 1222790219 in words is "one billion, two hundred twenty-two million, seven hundred ninety thousand, two hundred nineteen".