13101212121121 has 8 divisors (see below), whose sum is σ = 13806916968320. Its totient is φ = 12397124010672.

The previous prime is 13101212121059. The next prime is 13101212121131. The reversal of 13101212121121 is 12112121210131.

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

It is not a de Polignac number, because 13101212121121 - 2⁹ = 13101212120609 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13101212121131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404167545 + ... + 404199958.

It is an arithmetic number, because the mean of its divisors is an integer number (1725864621040).

Almost surely, 2^{13101212121121} is an apocalyptic number.

It is an amenable number.

13101212121121 is a deficient number, since it is larger than the sum of its proper divisors (705704847199).

13101212121121 is an equidigital number, since it uses as much as digits as its factorization.

13101212121121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808368375.

The product of its (nonzero) digits is 48, while the sum is 19.

Adding to 13101212121121 its reverse (12112121210131), we get a palindrome (25213333331252).

The spelling of 13101212121121 in words is "thirteen trillion, one hundred one billion, two hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".