213242211224443 has 4 divisors (see below), whose sum is σ = 217265649172128. Its totient is φ = 209218773276760.

The previous prime is 213242211224407. The next prime is 213242211224507. The reversal of 213242211224443 is 344422112242312.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213242211224443 - 2⁴⁵ = 178057839135611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213242211221443) 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, 2011718973763 + ... + 2011718973868.

It is an arithmetic number, because the mean of its divisors is an integer number (54316412293032).

Almost surely, 2^{213242211224443} is an apocalyptic number.

213242211224443 is a deficient number, since it is larger than the sum of its proper divisors (4023437947685).

213242211224443 is an equidigital number, since it uses as much as digits as its factorization.

213242211224443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4023437947684.

The product of its digits is 147456, while the sum is 37.

Adding to 213242211224443 its reverse (344422112242312), we get a palindrome (557664323466755).

The spelling of 213242211224443 in words is "two hundred thirteen trillion, two hundred forty-two billion, two hundred eleven million, two hundred twenty-four thousand, four hundred forty-three".