1012217 has 2 divisors, whose sum is σ = 1012218. Its totient is φ = 1012216.

The previous prime is 1012213. The next prime is 1012229. The reversal of 1012217 is 7122101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 885481 + 126736 = 941^2 + 356^2 .

It is a cyclic number.

It is not a de Polignac number, because 1012217 - 2² = 1012213 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1012213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506108 + 506109.

It is an arithmetic number, because the mean of its divisors is an integer number (506109).

2^1012217 is an apocalyptic number.

It is an amenable number.

1012217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1012217 is an equidigital number, since it uses as much as digits as its factorization.

1012217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 1012217 is about 1006.0899562166. The cubic root of 1012217 is about 100.4055861085.

Adding to 1012217 its reverse (7122101), we get a palindrome (8134318).

The spelling of 1012217 in words is "one million, twelve thousand, two hundred seventeen".