221332233123 has 24 divisors (see below), whose sum is σ = 325376064000. Its totient is φ = 144954851184.

The previous prime is 221332233053. The next prime is 221332233131. The reversal of 221332233123 is 321332233122.

221332233123 is a `hidden beast` number, since 2 + 2 + 1 + 3 + 322 + 331 + 2 + 3 = 666.

It is not a de Polignac number, because 221332233123 - 2⁸ = 221332232867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (221332233173) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 640665 + ... + 923642.

It is an arithmetic number, because the mean of its divisors is an integer number (13557336000).

Almost surely, 2^221332233123 is an apocalyptic number.

221332233123 is a deficient number, since it is larger than the sum of its proper divisors (104043830877).

221332233123 is a wasteful number, since it uses less digits than its factorization.

221332233123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564591 (or 1564588 counting only the distinct ones).

The product of its digits is 7776, while the sum is 27.

Adding to 221332233123 its reverse (321332233122), we get a palindrome (542664466245).

Subtracting 221332233123 from its reverse (321332233122), we obtain a palindrome (99999999999).

The spelling of 221332233123 in words is "two hundred twenty-one billion, three hundred thirty-two million, two hundred thirty-three thousand, one hundred twenty-three".