1064223221 has 2 divisors, whose sum is σ = 1064223222. Its totient is φ = 1064223220.

The previous prime is 1064223203. The next prime is 1064223229. The reversal of 1064223221 is 1223224601.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 961930225 + 102292996 = 31015^2 + 10114^2 .

It is a cyclic number.

It is not a de Polignac number, because 1064223221 - 2⁶ = 1064223157 is a prime.

It is a super-2 number, since 2×1064223221² = 2265142128231229682, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1064223229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 532111610 + 532111611.

It is an arithmetic number, because the mean of its divisors is an integer number (532111611).

Almost surely, 2^1064223221 is an apocalyptic number.

It is an amenable number.

1064223221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1064223221 is an equidigital number, since it uses as much as digits as its factorization.

1064223221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1064223221 is about 32622.4343205715. The cubic root of 1064223221 is about 1020.9651319279.

Adding to 1064223221 its reverse (1223224601), we get a palindrome (2287447822).

The spelling of 1064223221 in words is "one billion, sixty-four million, two hundred twenty-three thousand, two hundred twenty-one".