221030031322 has 16 divisors (see below), whose sum is σ = 346831324200. Its totient is φ = 105505227520.

The previous prime is 221030031319. The next prime is 221030031389. The reversal of 221030031322 is 223130030122.

It can be written as a sum of positive squares in 4 ways, for example, as 139181971041 + 81848060281 = 373071^2 + 286091^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221030031322.

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, 21404179 + ... + 21414502.

Almost surely, 2^221030031322 is an apocalyptic number.

221030031322 is a deficient number, since it is larger than the sum of its proper divisors (125801292878).

221030031322 is a wasteful number, since it uses less digits than its factorization.

221030031322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42818801.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 221030031322 its reverse (223130030122), we get a palindrome (444160061444).

The spelling of 221030031322 in words is "two hundred twenty-one billion, thirty million, thirty-one thousand, three hundred twenty-two".