2013211313221 has 4 divisors (see below), whose sum is σ = 2013324033952. Its totient is φ = 2013098592492.

The previous prime is 2013211313213. The next prime is 2013211313231. The reversal of 2013211313221 is 1223131123102.

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 2013211313221 - 2³ = 2013211313213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2013211313192 and 2013211313201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2013211313231) 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, 56333571 + ... + 56369296.

It is an arithmetic number, because the mean of its divisors is an integer number (503331008488).

Almost surely, 2^{2013211313221} is an apocalyptic number.

It is an amenable number.

2013211313221 is a deficient number, since it is larger than the sum of its proper divisors (112720731).

2013211313221 is a wasteful number, since it uses less digits than its factorization.

2013211313221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112720730.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2013211313221 its reverse (1223131123102), we get a palindrome (3236342436323).

The spelling of 2013211313221 in words is "two trillion, thirteen billion, two hundred eleven million, three hundred thirteen thousand, two hundred twenty-one".