1222631425 has 6 divisors (see below), whose sum is σ = 1516062998. Its totient is φ = 978105120.

The previous prime is 1222631419. The next prime is 1222631461. The reversal of 1222631425 is 5241362221.

It can be written as a sum of positive squares in 3 ways, for example, as 30724849 + 1191906576 = 5543^2 + 34524^2 .

It is not a de Polignac number, because 1222631425 - 2¹⁷ = 1222500353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1222631393 and 1222631402.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 24452604 + ... + 24452653.

Almost surely, 2^1222631425 is an apocalyptic number.

It is an amenable number.

1222631425 is a deficient number, since it is larger than the sum of its proper divisors (293431573).

1222631425 is an equidigital number, since it uses as much as digits as its factorization.

1222631425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48905267 (or 48905262 counting only the distinct ones).

The product of its digits is 5760, while the sum is 28.

The square root of 1222631425 is about 34966.1468423388. The cubic root of 1222631425 is about 1069.2974177718.

Adding to 1222631425 its reverse (5241362221), we get a palindrome (6463993646).

The spelling of 1222631425 in words is "one billion, two hundred twenty-two million, six hundred thirty-one thousand, four hundred twenty-five".