1029221 has 4 divisors (see below), whose sum is σ = 1035552. Its totient is φ = 1022892.

The previous prime is 1029209. The next prime is 1029247. The reversal of 1029221 is 1229201.

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.

It is a cyclic number.

It is not a de Polignac number, because 1029221 - 2⁶ = 1029157 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1029221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1029251) 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, 2915 + ... + 3248.

It is an arithmetic number, because the mean of its divisors is an integer number (258888).

2^1029221 is an apocalyptic number.

It is an amenable number.

1029221 is a deficient number, since it is larger than the sum of its proper divisors (6331).

1029221 is an equidigital number, since it uses as much as digits as its factorization.

1029221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6330.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1029221 is about 1014.5052981626. The cubic root of 1029221 is about 100.9646970040.

The spelling of 1029221 in words is "one million, twenty-nine thousand, two hundred twenty-one".