13021121212211 has 16 divisors (see below), whose sum is σ = 15228259774464. Its totient is φ = 10900758000384.

The previous prime is 13021121212201. The next prime is 13021121212223. The reversal of 13021121212211 is 11221212112031.

It is not a de Polignac number, because 13021121212211 - 2²⁶ = 13021054103347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13021121212201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3842030 + ... + 6387756.

It is an arithmetic number, because the mean of its divisors is an integer number (951766235904).

Almost surely, 2^{13021121212211} is an apocalyptic number.

13021121212211 is a deficient number, since it is larger than the sum of its proper divisors (2207138562253).

13021121212211 is a wasteful number, since it uses less digits than its factorization.

13021121212211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2562770.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 13021121212211 its reverse (11221212112031), we get a palindrome (24242333324242).

The spelling of 13021121212211 in words is "thirteen trillion, twenty-one billion, one hundred twenty-one million, two hundred twelve thousand, two hundred eleven".