221222010322 has 4 divisors (see below), whose sum is σ = 331833015486. Its totient is φ = 110611005160.

The previous prime is 221222010203. The next prime is 221222010323. The reversal of 221222010322 is 223010222122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 111236257441 + 109985752881 = 333521^2 + 331641^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 221222010322.

It is not an unprimeable number, because it can be changed into a prime (221222010323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55305502579 + ... + 55305502582.

Almost surely, 2^221222010322 is an apocalyptic number.

221222010322 is a deficient number, since it is larger than the sum of its proper divisors (110611005164).

221222010322 is a wasteful number, since it uses less digits than its factorization.

221222010322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110611005163.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 221222010322 its reverse (223010222122), we get a palindrome (444232232444).

The spelling of 221222010322 in words is "two hundred twenty-one billion, two hundred twenty-two million, ten thousand, three hundred twenty-two".