213221222413 has 4 divisors (see below), whose sum is σ = 222491710368. Its totient is φ = 203950734460.

The previous prime is 213221222411. The next prime is 213221222443. The reversal of 213221222413 is 314222122312.

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 213221222413 - 2¹ = 213221222411 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 (213221222411) 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, 4635243943 + ... + 4635243988.

It is an arithmetic number, because the mean of its divisors is an integer number (55622927592).

Almost surely, 2^213221222413 is an apocalyptic number.

213221222413 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

213221222413 is a deficient number, since it is larger than the sum of its proper divisors (9270487955).

213221222413 is an equidigital number, since it uses as much as digits as its factorization.

213221222413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9270487954.

The product of its digits is 2304, while the sum is 25.

Adding to 213221222413 its reverse (314222122312), we get a palindrome (527443344725).

The spelling of 213221222413 in words is "two hundred thirteen billion, two hundred twenty-one million, two hundred twenty-two thousand, four hundred thirteen".