213243422422 has 4 divisors (see below), whose sum is σ = 319865133636. Its totient is φ = 106621711210.

The previous prime is 213243422389. The next prime is 213243422459. The reversal of 213243422422 is 224224342312.

It is a happy number.

213243422422 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53310855604 + ... + 53310855607.

It is an arithmetic number, because the mean of its divisors is an integer number (79966283409).

Almost surely, 2^213243422422 is an apocalyptic number.

213243422422 is a deficient number, since it is larger than the sum of its proper divisors (106621711214).

213243422422 is a wasteful number, since it uses less digits than its factorization.

213243422422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106621711213.

The product of its digits is 36864, while the sum is 31.

Adding to 213243422422 its reverse (224224342312), we get a palindrome (437467764734).

The spelling of 213243422422 in words is "two hundred thirteen billion, two hundred forty-three million, four hundred twenty-two thousand, four hundred twenty-two".