13012220997 has 32 divisors (see below), whose sum is σ = 20236124160. Its totient is φ = 8247895920.

The previous prime is 13012220911. The next prime is 13012221007. The reversal of 13012220997 is 79902221031.

13012220997 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13012220997 - 2¹⁴ = 13012204613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012220797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40972 + ... + 166442.

It is an arithmetic number, because the mean of its divisors is an integer number (632378880).

Almost surely, 2^13012220997 is an apocalyptic number.

It is an amenable number.

13012220997 is a deficient number, since it is larger than the sum of its proper divisors (7223903163).

13012220997 is a wasteful number, since it uses less digits than its factorization.

13012220997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125670 (or 125664 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 13012220997 in words is "thirteen billion, twelve million, two hundred twenty thousand, nine hundred ninety-seven".