12820255701 has 16 divisors (see below), whose sum is σ = 18999489600. Its totient is φ = 7623249920.

The previous prime is 12820255691. The next prime is 12820255709. The reversal of 12820255701 is 10755202821.

It is not a de Polignac number, because 12820255701 - 2¹¹ = 12820253653 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12820255709) 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 15 ways as a sum of consecutive naturals, for example, 3663276 + ... + 3666773.

It is an arithmetic number, because the mean of its divisors is an integer number (1187468100).

Almost surely, 2^12820255701 is an apocalyptic number.

12820255701 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12820255701 is a deficient number, since it is larger than the sum of its proper divisors (6179233899).

12820255701 is a wasteful number, since it uses less digits than its factorization.

12820255701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7330116.

The product of its (nonzero) digits is 11200, while the sum is 33.

The spelling of 12820255701 in words is "twelve billion, eight hundred twenty million, two hundred fifty-five thousand, seven hundred one".