1224223837 has 2 divisors, whose sum is σ = 1224223838. Its totient is φ = 1224223836.

The previous prime is 1224223817. The next prime is 1224223841. The reversal of 1224223837 is 7383224221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1093029721 + 131194116 = 33061^2 + 11454^2 .

It is an emirp because it is prime and its reverse (7383224221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1224223837 - 2¹⁵ = 1224191069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1224223817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 612111918 + 612111919.

It is an arithmetic number, because the mean of its divisors is an integer number (612111919).

Almost surely, 2^1224223837 is an apocalyptic number.

It is an amenable number.

1224223837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1224223837 is an equidigital number, since it uses as much as digits as its factorization.

1224223837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 32256, while the sum is 34.

The square root of 1224223837 is about 34988.9102002334. The cubic root of 1224223837 is about 1069.7614505913.

The spelling of 1224223837 in words is "one billion, two hundred twenty-four million, two hundred twenty-three thousand, eight hundred thirty-seven".