13122200311021 has 4 divisors (see below), whose sum is σ = 13126177944000. Its totient is φ = 13118222678044.

The previous prime is 13122200310979. The next prime is 13122200311039. The reversal of 13122200311021 is 12011300222131.

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 13122200311021 - 2⁷ = 13122200310893 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13122200311021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13122200311621) 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, 1988811541 + ... + 1988818138.

It is an arithmetic number, because the mean of its divisors is an integer number (3281544486000).

Almost surely, 2^{13122200311021} is an apocalyptic number.

It is an amenable number.

13122200311021 is a deficient number, since it is larger than the sum of its proper divisors (3977632979).

13122200311021 is an equidigital number, since it uses as much as digits as its factorization.

13122200311021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3977632978.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13122200311021 its reverse (12011300222131), we get a palindrome (25133500533152).

The spelling of 13122200311021 in words is "thirteen trillion, one hundred twenty-two billion, two hundred million, three hundred eleven thousand, twenty-one".