13122041300021 has 4 divisors (see below), whose sum is σ = 13124174624544. Its totient is φ = 13119907975500.

The previous prime is 13122041299987. The next prime is 13122041300099. The reversal of 13122041300021 is 12000314022131.

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 a cyclic number.

It is not a de Polignac number, because 13122041300021 - 2⁶ = 13122041299957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122041299966 and 13122041300002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122041309021) 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, 1066653035 + ... + 1066665336.

It is an arithmetic number, because the mean of its divisors is an integer number (3281043656136).

Almost surely, 2^{13122041300021} is an apocalyptic number.

It is an amenable number.

13122041300021 is a deficient number, since it is larger than the sum of its proper divisors (2133324523).

13122041300021 is an equidigital number, since it uses as much as digits as its factorization.

13122041300021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133324522.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 13122041300021 its reverse (12000314022131), we get a palindrome (25122355322152).

The spelling of 13122041300021 in words is "thirteen trillion, one hundred twenty-two billion, forty-one million, three hundred thousand, twenty-one".