13122203220121 has 4 divisors (see below), whose sum is σ = 13427370736912. Its totient is φ = 12817035703332.

The previous prime is 13122203220047. The next prime is 13122203220127. The reversal of 13122203220121 is 12102230222131.

13122203220121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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-13122203220121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13122203220092 and 13122203220101.

It is not an unprimeable number, because it can be changed into a prime (13122203220127) 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, 152583758331 + ... + 152583758416.

It is an arithmetic number, because the mean of its divisors is an integer number (3356842684228).

Almost surely, 2^{13122203220121} is an apocalyptic number.

It is an amenable number.

13122203220121 is a deficient number, since it is larger than the sum of its proper divisors (305167516791).

13122203220121 is an equidigital number, since it uses as much as digits as its factorization.

13122203220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 305167516790.

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

Adding to 13122203220121 its reverse (12102230222131), we get a palindrome (25224433442252).

The spelling of 13122203220121 in words is "thirteen trillion, one hundred twenty-two billion, two hundred three million, two hundred twenty thousand, one hundred twenty-one".