221422259 has 2 divisors, whose sum is σ = 221422260. Its totient is φ = 221422258.

The previous prime is 221422249. The next prime is 221422261. The reversal of 221422259 is 952224122.

221422259 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221422259 - 2²⁰ = 220373683 is a prime.

Together with 221422261, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (221422249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110711129 + 110711130.

It is an arithmetic number, because the mean of its divisors is an integer number (110711130).

Almost surely, 2^221422259 is an apocalyptic number.

221422259 is a deficient number, since it is larger than the sum of its proper divisors (1).

221422259 is an equidigital number, since it uses as much as digits as its factorization.

221422259 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 29.

The square root of 221422259 is about 14880.2640769578. The cubic root of 221422259 is about 604.9791755690.

The spelling of 221422259 in words is "two hundred twenty-one million, four hundred twenty-two thousand, two hundred fifty-nine".