221341069 has 2 divisors, whose sum is σ = 221341070. Its totient is φ = 221341068.

The previous prime is 221341039. The next prime is 221341181. The reversal of 221341069 is 960143122.

221341069 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 can be written as a sum of positive squares in only one way, i.e., 195636169 + 25704900 = 13987^2 + 5070^2 .

It is a cyclic number.

It is not a de Polignac number, because 221341069 - 2¹⁵ = 221308301 is a prime.

It is a super-2 number, since 2×221341069² = 97983737652125522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (221341019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 110670534 + 110670535.

It is an arithmetic number, because the mean of its divisors is an integer number (110670535).

Almost surely, 2^221341069 is an apocalyptic number.

It is an amenable number.

221341069 is a deficient number, since it is larger than the sum of its proper divisors (1).

221341069 is an equidigital number, since it uses as much as digits as its factorization.

221341069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 221341069 is about 14877.5357166434. The cubic root of 221341069 is about 604.9052229559.

The spelling of 221341069 in words is "two hundred twenty-one million, three hundred forty-one thousand, sixty-nine".