221013321322 has 8 divisors (see below), whose sum is σ = 336954735972. Its totient is φ = 108695076000.

The previous prime is 221013321307. The next prime is 221013321329. The reversal of 221013321322 is 223123310122.

It can be written as a sum of positive squares in 2 ways, for example, as 220485654481 + 527666841 = 469559^2 + 22971^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 221013321293 and 221013321302.

It is not an unprimeable number, because it can be changed into a prime (221013321329) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 905792179 + ... + 905792422.

Almost surely, 2^221013321322 is an apocalyptic number.

221013321322 is a deficient number, since it is larger than the sum of its proper divisors (115941414650).

221013321322 is a wasteful number, since it uses less digits than its factorization.

221013321322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811584664.

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

Adding to 221013321322 its reverse (223123310122), we get a palindrome (444136631444).

The spelling of 221013321322 in words is "two hundred twenty-one billion, thirteen million, three hundred twenty-one thousand, three hundred twenty-two".