221321102102233 has 4 divisors (see below), whose sum is σ = 252938402402560. Its totient is φ = 189703801801908.

The previous prime is 221321102102231. The next prime is 221321102102263. The reversal of 221321102102233 is 332201201123122.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 221321102102233 - 2¹ = 221321102102231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 221321102102198 and 221321102102207.

It is not an unprimeable number, because it can be changed into a prime (221321102102231) 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 in 3 ways as a sum of consecutive naturals, for example, 15808650150153 + ... + 15808650150166.

It is an arithmetic number, because the mean of its divisors is an integer number (63234600600640).

Almost surely, 2^{221321102102233} is an apocalyptic number.

It is an amenable number.

221321102102233 is a deficient number, since it is larger than the sum of its proper divisors (31617300300327).

221321102102233 is an equidigital number, since it uses as much as digits as its factorization.

221321102102233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31617300300326.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 221321102102233 its reverse (332201201123122), we get a palindrome (553522303225355).

The spelling of 221321102102233 in words is "two hundred twenty-one trillion, three hundred twenty-one billion, one hundred two million, one hundred two thousand, two hundred thirty-three".