1262221 has 2 divisors, whose sum is σ = 1262222. Its totient is φ = 1262220.

The previous prime is 1262207. The next prime is 1262231. The reversal of 1262221 is 1222621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1022121 + 240100 = 1011^2 + 490^2 .

It is a cyclic number.

It is not a de Polignac number, because 1262221 - 2¹⁵ = 1229453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1262195 and 1262204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1262231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631110 + 631111.

It is an arithmetic number, because the mean of its divisors is an integer number (631111).

2^1262221 is an apocalyptic number.

It is an amenable number.

1262221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1262221 is an equidigital number, since it uses as much as digits as its factorization.

1262221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96, while the sum is 16.

The square root of 1262221 is about 1123.4860924818. The cubic root of 1262221 is about 108.0716545523.

Adding to 1262221 its reverse (1222621), we get a palindrome (2484842).

The spelling of 1262221 in words is "one million, two hundred sixty-two thousand, two hundred twenty-one".