213222122324 has 12 divisors (see below), whose sum is σ = 373249757748. Its totient is φ = 106579334400.

The previous prime is 213222122303. The next prime is 213222122327. The reversal of 213222122324 is 423221222312.

It can be written as a sum of positive squares in 2 ways, for example, as 56934732100 + 156287390224 = 238610^2 + 395332^2 .

It is a junction number, because it is equal to n+sod(n) for n = 213222122293 and 213222122302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213222122327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7916567 + ... + 7943454.

It is an arithmetic number, because the mean of its divisors is an integer number (31104146479).

Almost surely, 2^213222122324 is an apocalyptic number.

It is an amenable number.

213222122324 is a deficient number, since it is larger than the sum of its proper divisors (160027635424).

213222122324 is a wasteful number, since it uses less digits than its factorization.

213222122324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15863386 (or 15863384 counting only the distinct ones).

The product of its digits is 4608, while the sum is 26.

Adding to 213222122324 its reverse (423221222312), we get a palindrome (636443344636).

The spelling of 213222122324 in words is "two hundred thirteen billion, two hundred twenty-two million, one hundred twenty-two thousand, three hundred twenty-four".