213213023222 has 4 divisors (see below), whose sum is σ = 319819534836. Its totient is φ = 106606511610.

The previous prime is 213213023201. The next prime is 213213023251. The reversal of 213213023222 is 222320312312.

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

It is a super-2 number, since 2×213213023222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53303255804 + ... + 53303255807.

It is an arithmetic number, because the mean of its divisors is an integer number (79954883709).

Almost surely, 2^213213023222 is an apocalyptic number.

213213023222 is a deficient number, since it is larger than the sum of its proper divisors (106606511614).

213213023222 is a wasteful number, since it uses less digits than its factorization.

213213023222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106606511613.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 213213023222 its reverse (222320312312), we get a palindrome (435533335534).

The spelling of 213213023222 in words is "two hundred thirteen billion, two hundred thirteen million, twenty-three thousand, two hundred twenty-two".