1024221 has 16 divisors (see below), whose sum is σ = 1528128. Its totient is φ = 604800.

The previous prime is 1024207. The next prime is 1024249. The reversal of 1024221 is 1224201.

It is not a de Polignac number, because 1024221 - 2⁵ = 1024189 is a prime.

1024221 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1024197 and 1024206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1024021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 975 + ... + 1731.

It is an arithmetic number, because the mean of its divisors is an integer number (95508).

2^1024221 is an apocalyptic number.

1024221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1024221 is a deficient number, since it is larger than the sum of its proper divisors (503907).

1024221 is a wasteful number, since it uses less digits than its factorization.

1024221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 812.

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1024221 is about 1012.0380427632. The cubic root of 1024221 is about 100.8009345781.

Adding to 1024221 its reverse (1224201), we get a palindrome (2248422).

The spelling of 1024221 in words is "one million, twenty-four thousand, two hundred twenty-one".