13021012201 has 4 divisors (see below), whose sum is σ = 13021362900. Its totient is φ = 13020661504.

The previous prime is 13021012187. The next prime is 13021012217. The reversal of 13021012201 is 10221012031.

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 8690714176 + 4330298025 = 93224^2 + 65805^2 .

It is a cyclic number.

It is not a de Polignac number, because 13021012201 - 2⁷ = 13021012073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021010201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112036 + ... + 196453.

It is an arithmetic number, because the mean of its divisors is an integer number (3255340725).

Almost surely, 2^13021012201 is an apocalyptic number.

It is an amenable number.

13021012201 is a deficient number, since it is larger than the sum of its proper divisors (350699).

13021012201 is an equidigital number, since it uses as much as digits as its factorization.

13021012201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350698.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 13021012201 its reverse (10221012031), we get a palindrome (23242024232).

The spelling of 13021012201 in words is "thirteen billion, twenty-one million, twelve thousand, two hundred one".