1207266256281 has 4 divisors (see below), whose sum is σ = 1609688341712. Its totient is φ = 804844170852.

The previous prime is 1207266256271. The next prime is 1207266256337. The reversal of 1207266256281 is 1826526627021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1207266256281 - 2¹⁹ = 1207265731993 is a prime.

It is a super-2 number, since 2×1207266256281² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1207266256281.

It is not an unprimeable number, because it can be changed into a prime (1207266256201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 201211042711 + ... + 201211042716.

It is an arithmetic number, because the mean of its divisors is an integer number (402422085428).

Almost surely, 2^{1207266256281} is an apocalyptic number.

It is an amenable number.

1207266256281 is a deficient number, since it is larger than the sum of its proper divisors (402422085431).

1207266256281 is an equidigital number, since it uses as much as digits as its factorization.

1207266256281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 402422085430.

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 1207266256281 in words is "one trillion, two hundred seven billion, two hundred sixty-six million, two hundred fifty-six thousand, two hundred eighty-one".