1064221 has 4 divisors (see below), whose sum is σ = 1086912. Its totient is φ = 1041532.

The previous prime is 1064201. The next prime is 1064243. The reversal of 1064221 is 1224601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1224601 = 7 ⋅174943.

It is a cyclic number.

It is not a de Polignac number, because 1064221 - 2⁹ = 1063709 is a prime.

It is a super-2 number, since 2×1064221² = 2265132673682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1064195 and 1064204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1064201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11275 + ... + 11368.

It is an arithmetic number, because the mean of its divisors is an integer number (271728).

2^1064221 is an apocalyptic number.

It is an amenable number.

1064221 is a deficient number, since it is larger than the sum of its proper divisors (22691).

1064221 is an equidigital number, since it uses as much as digits as its factorization.

1064221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22690.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1064221 is about 1031.6108762513. The cubic root of 1064221 is about 102.0964421687.

Adding to 1064221 its reverse (1224601), we get a palindrome (2288822).

The spelling of 1064221 in words is "one million, sixty-four thousand, two hundred twenty-one".