13022100221021 has 4 divisors (see below), whose sum is σ = 13059627887712. Its totient is φ = 12984572554332.

The previous prime is 13022100220999. The next prime is 13022100221027. The reversal of 13022100221021 is 12012200122031.

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 a de Polignac number, because none of the positive numbers 2^k-13022100221021 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13022100221027) 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, 18763832825 + ... + 18763833518.

It is an arithmetic number, because the mean of its divisors is an integer number (3264906971928).

Almost surely, 2^{13022100221021} is an apocalyptic number.

It is an amenable number.

13022100221021 is a deficient number, since it is larger than the sum of its proper divisors (37527666691).

13022100221021 is an equidigital number, since it uses as much as digits as its factorization.

13022100221021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37527666690.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 13022100221021 its reverse (12012200122031), we get a palindrome (25034300343052).

The spelling of 13022100221021 in words is "thirteen trillion, twenty-two billion, one hundred million, two hundred twenty-one thousand, twenty-one".