221211999119 has 2 divisors, whose sum is σ = 221211999120. Its totient is φ = 221211999118.

The previous prime is 221211999097. The next prime is 221211999167. The reversal of 221211999119 is 911999112122.

221211999119 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 221211999119 - 2¹⁶ = 221211933583 is a prime.

It is a super-2 number, since 2×221211999119² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221211999199) 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, 110605999559 + 110605999560.

It is an arithmetic number, because the mean of its divisors is an integer number (110605999560).

Almost surely, 2^221211999119 is an apocalyptic number.

221211999119 is a deficient number, since it is larger than the sum of its proper divisors (1).

221211999119 is an equidigital number, since it uses as much as digits as its factorization.

221211999119 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52488, while the sum is 47.

The spelling of 221211999119 in words is "two hundred twenty-one billion, two hundred eleven million, nine hundred ninety-nine thousand, one hundred nineteen".