1225212341 has 2 divisors, whose sum is σ = 1225212342. Its totient is φ = 1225212340.

The previous prime is 1225212299. The next prime is 1225212377. The reversal of 1225212341 is 1432125221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1211736100 + 13476241 = 34810^2 + 3671^2 .

It is a cyclic number.

It is not a de Polignac number, because 1225212341 - 2¹⁴ = 1225195957 is a prime.

It is a super-2 number, since 2×1225212341² = 3002290561077400562, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1225212041) by changing a digit.

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 as a sum of consecutive naturals, namely, 612606170 + 612606171.

It is an arithmetic number, because the mean of its divisors is an integer number (612606171).

Almost surely, 2^1225212341 is an apocalyptic number.

It is an amenable number.

1225212341 is a deficient number, since it is larger than the sum of its proper divisors (1).

1225212341 is an equidigital number, since it uses as much as digits as its factorization.

1225212341 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 960, while the sum is 23.

The square root of 1225212341 is about 35003.0333114146. The cubic root of 1225212341 is about 1070.0493007243.

Adding to 1225212341 its reverse (1432125221), we get a palindrome (2657337562).

The spelling of 1225212341 in words is "one billion, two hundred twenty-five million, two hundred twelve thousand, three hundred forty-one".