42211219 has 2 divisors, whose sum is σ = 42211220. Its totient is φ = 42211218.

The previous prime is 42211171. The next prime is 42211259. The reversal of 42211219 is 91211224.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42211219 - 2²³ = 33822611 is a prime.

It is a super-2 number, since 2×42211219² = 3563574018931922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42211219.

It is not a weakly prime, because it can be changed into another prime (42211259) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21105609 + 21105610.

It is an arithmetic number, because the mean of its divisors is an integer number (21105610).

Almost surely, 2^42211219 is an apocalyptic number.

42211219 is a deficient number, since it is larger than the sum of its proper divisors (1).

42211219 is an equidigital number, since it uses as much as digits as its factorization.

42211219 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 288, while the sum is 22.

The square root of 42211219 is about 6497.0161612851. The cubic root of 42211219 is about 348.1843910954.

The spelling of 42211219 in words is "forty-two million, two hundred eleven thousand, two hundred nineteen".