1026221 has 4 divisors (see below), whose sum is σ = 1172832. Its totient is φ = 879612.

The previous prime is 1026217. The next prime is 1026227. The reversal of 1026221 is 1226201.

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: 1226201 = 643 ⋅1907.

It is a cyclic number.

It is not a de Polignac number, because 1026221 - 2² = 1026217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1026196 and 1026205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1026227) 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, 73295 + ... + 73308.

It is an arithmetic number, because the mean of its divisors is an integer number (293208).

2^1026221 is an apocalyptic number.

It is an amenable number.

1026221 is a deficient number, since it is larger than the sum of its proper divisors (146611).

1026221 is an equidigital number, since it uses as much as digits as its factorization.

1026221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146610.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1026221 is about 1013.0256660125. The cubic root of 1026221 is about 100.8665033660.

The spelling of 1026221 in words is "one million, twenty-six thousand, two hundred twenty-one".