22220221619 has 2 divisors, whose sum is σ = 22220221620. Its totient is φ = 22220221618.

The previous prime is 22220221601. The next prime is 22220221627. The reversal of 22220221619 is 91612202222.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22220221619 is a prime.

It is a super-2 number, since 2×22220221619² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 22220221591 and 22220221600.

It is not a weakly prime, because it can be changed into another prime (22220221519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11110110809 + 11110110810.

It is an arithmetic number, because the mean of its divisors is an integer number (11110110810).

Almost surely, 2^22220221619 is an apocalyptic number.

22220221619 is a deficient number, since it is larger than the sum of its proper divisors (1).

22220221619 is an equidigital number, since it uses as much as digits as its factorization.

22220221619 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The spelling of 22220221619 in words is "twenty-two billion, two hundred twenty million, two hundred twenty-one thousand, six hundred nineteen".