221323320233222 has 4 divisors (see below), whose sum is σ = 331984980349836. Its totient is φ = 110661660116610.

The previous prime is 221323320233219. The next prime is 221323320233261. The reversal of 221323320233222 is 222332023323122.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55330830058304 + ... + 55330830058307.

It is an arithmetic number, because the mean of its divisors is an integer number (82996245087459).

Almost surely, 2^{221323320233222} is an apocalyptic number.

221323320233222 is a deficient number, since it is larger than the sum of its proper divisors (110661660116614).

221323320233222 is a wasteful number, since it uses less digits than its factorization.

221323320233222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110661660116613.

The product of its (nonzero) digits is 62208, while the sum is 32.

Adding to 221323320233222 its reverse (222332023323122), we get a palindrome (443655343556344).

The spelling of 221323320233222 in words is "two hundred twenty-one trillion, three hundred twenty-three billion, three hundred twenty million, two hundred thirty-three thousand, two hundred twenty-two".