1048221 has 10 divisors (see below), whose sum is σ = 1565982. Its totient is φ = 698760.

The previous prime is 1048219. The next prime is 1048261. The reversal of 1048221 is 1228401.

It can be written as a sum of positive squares in only one way, i.e., 980100 + 68121 = 990^2 + 261^2 .

It is not a de Polignac number, because 1048221 - 2¹ = 1048219 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 1048194 and 1048203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1048261) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 6390 + ... + 6551.

2^1048221 is an apocalyptic number.

It is an amenable number.

1048221 is a deficient number, since it is larger than the sum of its proper divisors (517761).

1048221 is an equidigital number, since it uses as much as digits as its factorization.

1048221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12953 (or 12944 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

The square root of 1048221 is about 1023.8266454825. The cubic root of 1048221 is about 101.5822010381.

The spelling of 1048221 in words is "one million, forty-eight thousand, two hundred twenty-one".