221013319 has 2 divisors, whose sum is σ = 221013320. Its totient is φ = 221013318.

The previous prime is 221013283. The next prime is 221013341. The reversal of 221013319 is 913310122.

221013319 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an a-pointer prime, because the next prime (221013341) can be obtained adding 221013319 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 221013319 - 2²¹ = 218916167 is a prime.

It is a super-2 number, since 2×221013319² = 97693774350791522, 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 221013319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221013349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110506659 + 110506660.

It is an arithmetic number, because the mean of its divisors is an integer number (110506660).

Almost surely, 2^221013319 is an apocalyptic number.

221013319 is a deficient number, since it is larger than the sum of its proper divisors (1).

221013319 is an equidigital number, since it uses as much as digits as its factorization.

221013319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 221013319 is about 14866.5167070165. The cubic root of 221013319 is about 604.6065050470.

The spelling of 221013319 in words is "two hundred twenty-one million, thirteen thousand, three hundred nineteen".