321213022222 has 16 divisors (see below), whose sum is σ = 507190544640. Its totient is φ = 152149910328.

The previous prime is 321213022211. The next prime is 321213022223. The reversal of 321213022222 is 222220312123.

It is a junction number, because it is equal to n+sod(n) for n = 321213022193 and 321213022202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321213022223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2192593 + ... + 2334499.

It is an arithmetic number, because the mean of its divisors is an integer number (31699409040).

Almost surely, 2^321213022222 is an apocalyptic number.

321213022222 is a deficient number, since it is larger than the sum of its proper divisors (185977522418).

321213022222 is a wasteful number, since it uses less digits than its factorization.

321213022222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201495.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 321213022222 its reverse (222220312123), we get a palindrome (543433334345).

The spelling of 321213022222 in words is "three hundred twenty-one billion, two hundred thirteen million, twenty-two thousand, two hundred twenty-two".