1222931 has 2 divisors, whose sum is σ = 1222932. Its totient is φ = 1222930.

The previous prime is 1222913. The next prime is 1222943. The reversal of 1222931 is 1392221.

Together with previous prime (1222913) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is an emirp because it is prime and its reverse (1392221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222931 - 2¹⁰ = 1221907 is a prime.

It is a super-2 number, since 2×1222931² = 2991120461522, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1222231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611465 + 611466.

It is an arithmetic number, because the mean of its divisors is an integer number (611466).

2^1222931 is an apocalyptic number.

1222931 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222931 is an equidigital number, since it uses as much as digits as its factorization.

1222931 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 1222931 is about 1105.8621071363. The cubic root of 1222931 is about 106.9384745429.

The spelling of 1222931 in words is "one million, two hundred twenty-two thousand, nine hundred thirty-one".