221331001001223 has 8 divisors (see below), whose sum is σ = 303083893263088. Its totient is φ = 143566054703424.

The previous prime is 221331001001207. The next prime is 221331001001233. The reversal of 221331001001223 is 322100100133122.

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

It is not a de Polignac number, because 221331001001223 - 2⁴ = 221331001001207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 221331001001223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221331001001233) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 996986490886 + ... + 996986491107.

It is an arithmetic number, because the mean of its divisors is an integer number (37885486657886).

Almost surely, 2^{221331001001223} is an apocalyptic number.

221331001001223 is a deficient number, since it is larger than the sum of its proper divisors (81752892261865).

221331001001223 is a wasteful number, since it uses less digits than its factorization.

221331001001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1993972982033.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 221331001001223 its reverse (322100100133122), we get a palindrome (543431101134345).

The spelling of 221331001001223 in words is "two hundred twenty-one trillion, three hundred thirty-one billion, one million, one thousand, two hundred twenty-three".