212213031322 has 16 divisors (see below), whose sum is σ = 321491341800. Its totient is φ = 105049382400.

The previous prime is 212213031311. The next prime is 212213031343. The reversal of 212213031322 is 223130312212.

It can be written as a sum of positive squares in 4 ways, for example, as 179190509481 + 33022521841 = 423309^2 + 181721^2 .

It is a junction number, because it is equal to n+sod(n) for n = 212213031293 and 212213031302.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5517454 + ... + 5555782.

Almost surely, 2^212213031322 is an apocalyptic number.

212213031322 is a deficient number, since it is larger than the sum of its proper divisors (109278310478).

212213031322 is a wasteful number, since it uses less digits than its factorization.

212213031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65841.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212213031322 its reverse (223130312212), we get a palindrome (435343343534).

The spelling of 212213031322 in words is "two hundred twelve billion, two hundred thirteen million, thirty-one thousand, three hundred twenty-two".