1207225271261 has 2 divisors, whose sum is σ = 1207225271262. Its totient is φ = 1207225271260.

The previous prime is 1207225271257. The next prime is 1207225271269. The reversal of 1207225271261 is 1621725227021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 652395444100 + 554829827161 = 807710^2 + 744869^2 .

It is an emirp because it is prime and its reverse (1621725227021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1207225271261 - 2² = 1207225271257 is a prime.

It is a super-3 number, since 3×1207225271261³ (a number of 37 digits) contains 333 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1207225271269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 603612635630 + 603612635631.

It is an arithmetic number, because the mean of its divisors is an integer number (603612635631).

Almost surely, 2^{1207225271261} is an apocalyptic number.

It is an amenable number.

1207225271261 is a deficient number, since it is larger than the sum of its proper divisors (1).

1207225271261 is an equidigital number, since it uses as much as digits as its factorization.

1207225271261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 47040, while the sum is 38.

The spelling of 1207225271261 in words is "one trillion, two hundred seven billion, two hundred twenty-five million, two hundred seventy-one thousand, two hundred sixty-one".