213013314341221 has 4 divisors (see below), whose sum is σ = 215004092980032. Its totient is φ = 211022535702412.

The previous prime is 213013314341207. The next prime is 213013314341227. The reversal of 213013314341221 is 122143413310312.

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 213013314341221 - 2²⁹ = 213012777470309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213013314341227) 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 3 ways as a sum of consecutive naturals, for example, 995389319245 + ... + 995389319458.

It is an arithmetic number, because the mean of its divisors is an integer number (53751023245008).

Almost surely, 2^{213013314341221} is an apocalyptic number.

It is an amenable number.

213013314341221 is a deficient number, since it is larger than the sum of its proper divisors (1990778638811).

213013314341221 is a wasteful number, since it uses less digits than its factorization.

213013314341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990778638810.

The product of its (nonzero) digits is 10368, while the sum is 31.

Adding to 213013314341221 its reverse (122143413310312), we get a palindrome (335156727651533).

The spelling of 213013314341221 in words is "two hundred thirteen trillion, thirteen billion, three hundred fourteen million, three hundred forty-one thousand, two hundred twenty-one".