221311049746219 has 2 divisors, whose sum is σ = 221311049746220. Its totient is φ = 221311049746218.

The previous prime is 221311049746169. The next prime is 221311049746229. The reversal of 221311049746219 is 912647940113122.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221311049746219 - 2¹³ = 221311049738027 is a prime.

It is a super-2 number, since 2×221311049746219² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (221311049746229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110655524873109 + 110655524873110.

It is an arithmetic number, because the mean of its divisors is an integer number (110655524873110).

Almost surely, 2^{221311049746219} is an apocalyptic number.

221311049746219 is a deficient number, since it is larger than the sum of its proper divisors (1).

221311049746219 is an equidigital number, since it uses as much as digits as its factorization.

221311049746219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1306368, while the sum is 52.

The spelling of 221311049746219 in words is "two hundred twenty-one trillion, three hundred eleven billion, forty-nine million, seven hundred forty-six thousand, two hundred nineteen".