13022221312121 has 8 divisors (see below), whose sum is σ = 15665830150080. Its totient is φ = 10574435351088.

The previous prime is 13022221312091. The next prime is 13022221312127. The reversal of 13022221312121 is 12121312222031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13022221312121 - 2⁶ = 13022221312057 is a prime.

It is a super-4 number, since 4×13022221312121⁴ (a number of 54 digits) contains 4444 as substring.

It is not an unprimeable number, because it can be changed into a prime (13022221312127) 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 7 ways as a sum of consecutive naturals, for example, 48955719086 + ... + 48955719351.

It is an arithmetic number, because the mean of its divisors is an integer number (1958228768760).

Almost surely, 2^{13022221312121} is an apocalyptic number.

It is an amenable number.

13022221312121 is a deficient number, since it is larger than the sum of its proper divisors (2643608837959).

13022221312121 is an equidigital number, since it uses as much as digits as its factorization.

13022221312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97911438463.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 13022221312121 its reverse (12121312222031), we get a palindrome (25143533534152).

The spelling of 13022221312121 in words is "thirteen trillion, twenty-two billion, two hundred twenty-one million, three hundred twelve thousand, one hundred twenty-one".