1259221800013 has 4 divisors (see below), whose sum is σ = 1333293670620. Its totient is φ = 1185149929408.

The previous prime is 1259221799993. The next prime is 1259221800029. The reversal of 1259221800013 is 3100081229521.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1143023989129 + 116197810884 = 1069123^2 + 340878^2 .

It is a cyclic number.

It is not a de Polignac number, because 1259221800013 - 2²⁹ = 1258684929101 is a prime.

It is a super-3 number, since 3×1259221800013³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1259221800073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37035935278 + ... + 37035935311.

It is an arithmetic number, because the mean of its divisors is an integer number (333323417655).

Almost surely, 2^{1259221800013} is an apocalyptic number.

It is an amenable number.

1259221800013 is a deficient number, since it is larger than the sum of its proper divisors (74071870607).

1259221800013 is an equidigital number, since it uses as much as digits as its factorization.

1259221800013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74071870606.

The product of its (nonzero) digits is 8640, while the sum is 34.

The spelling of 1259221800013 in words is "one trillion, two hundred fifty-nine billion, two hundred twenty-one million, eight hundred thousand, thirteen".