221323102133 has 16 divisors (see below), whose sum is σ = 264063426816. Its totient is φ = 181371294720.

The previous prime is 221323102129. The next prime is 221323102157. The reversal of 221323102133 is 331201323122.

It is not a de Polignac number, because 221323102133 - 2² = 221323102129 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 221323102099 and 221323102108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221323102633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14903 + ... + 665483.

It is an arithmetic number, because the mean of its divisors is an integer number (16503964176).

Almost surely, 2^221323102133 is an apocalyptic number.

221323102133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

221323102133 is a deficient number, since it is larger than the sum of its proper divisors (42740324683).

221323102133 is a wasteful number, since it uses less digits than its factorization.

221323102133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 652724.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 221323102133 its reverse (331201323122), we get a palindrome (552524425255).

The spelling of 221323102133 in words is "two hundred twenty-one billion, three hundred twenty-three million, one hundred two thousand, one hundred thirty-three".