1222471 has 2 divisors, whose sum is σ = 1222472. Its totient is φ = 1222470.

The previous prime is 1222433. The next prime is 1222483. The reversal of 1222471 is 1742221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1222471 - 2⁹ = 1221959 is a prime.

It is a super-3 number, since 3×1222471³ = 5480711614996779333, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222411) by changing a digit.

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, 611235 + 611236.

It is an arithmetic number, because the mean of its divisors is an integer number (611236).

2^1222471 is an apocalyptic number.

1222471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222471 is an equidigital number, since it uses as much as digits as its factorization.

1222471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224, while the sum is 19.

The square root of 1222471 is about 1105.6541050437. The cubic root of 1222471 is about 106.9250647192.

Adding to 1222471 its reverse (1742221), we get a palindrome (2964692).

The spelling of 1222471 in words is "one million, two hundred twenty-two thousand, four hundred seventy-one".