13212022302121 has 4 divisors (see below), whose sum is σ = 13212580666752. Its totient is φ = 13211463937492.

The previous prime is 13212022302119. The next prime is 13212022302151. The reversal of 13212022302121 is 12120322021231.

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 13212022302121 - 2¹ = 13212022302119 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13212022302092 and 13212022302101.

It is not an unprimeable number, because it can be changed into a prime (13212022302151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 279146821 + ... + 279194146.

It is an arithmetic number, because the mean of its divisors is an integer number (3303145166688).

Almost surely, 2^{13212022302121} is an apocalyptic number.

It is an amenable number.

13212022302121 is a deficient number, since it is larger than the sum of its proper divisors (558364631).

13212022302121 is an equidigital number, since it uses as much as digits as its factorization.

13212022302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558364630.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13212022302121 its reverse (12120322021231), we get a palindrome (25332344323352).

The spelling of 13212022302121 in words is "thirteen trillion, two hundred twelve billion, twenty-two million, three hundred two thousand, one hundred twenty-one".