22211219 has 2 divisors, whose sum is σ = 22211220. Its totient is φ = 22211218.

The previous prime is 22211201. The next prime is 22211249. The reversal of 22211219 is 91211222.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22211219 - 2¹² = 22207123 is a prime.

It is a super-2 number, since 2×22211219² = 986676498931922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22211219.

It is not a weakly prime, because it can be changed into another prime (22211249) 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 as a sum of consecutive naturals, namely, 11105609 + 11105610.

It is an arithmetic number, because the mean of its divisors is an integer number (11105610).

Almost surely, 2^22211219 is an apocalyptic number.

22211219 is a deficient number, since it is larger than the sum of its proper divisors (1).

22211219 is an equidigital number, since it uses as much as digits as its factorization.

22211219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 20.

The square root of 22211219 is about 4712.8779954503. The cubic root of 22211219 is about 281.0978117213.

The spelling of 22211219 in words is "twenty-two million, two hundred eleven thousand, two hundred nineteen".