1021226 has 4 divisors (see below), whose sum is σ = 1531842. Its totient is φ = 510612.

The previous prime is 1021217. The next prime is 1021243. The reversal of 1021226 is 6221201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 724201 + 297025 = 851^2 + 545^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1021226.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255305 + ... + 255308.

2^1021226 is an apocalyptic number.

1021226 is a deficient number, since it is larger than the sum of its proper divisors (510616).

1021226 is an equidigital number, since it uses as much as digits as its factorization.

1021226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510615.

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

The square root of 1021226 is about 1010.5572720039. The cubic root of 1021226 is about 100.7025855089.

Adding to 1021226 its reverse (6221201), we get a palindrome (7242427).

The spelling of 1021226 in words is "one million, twenty-one thousand, two hundred twenty-six".