221133203340441 has 16 divisors (see below), whose sum is σ = 345183536923008. Its totient is φ = 123279834614400.

The previous prime is 221133203340431. The next prime is 221133203340473. The reversal of 221133203340441 is 144043302331122.

It is not a de Polignac number, because 221133203340441 - 2¹⁹ = 221133202816153 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (221133203340431) 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, 128416493530 + ... + 128416495251.

It is an arithmetic number, because the mean of its divisors is an integer number (21573971057688).

Almost surely, 2^{221133203340441} is an apocalyptic number.

221133203340441 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

221133203340441 is a deficient number, since it is larger than the sum of its proper divisors (124050333582567).

221133203340441 is a wasteful number, since it uses less digits than its factorization.

221133203340441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256832988832.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 221133203340441 its reverse (144043302331122), we get a palindrome (365176505671563).

The spelling of 221133203340441 in words is "two hundred twenty-one trillion, one hundred thirty-three billion, two hundred three million, three hundred forty thousand, four hundred forty-one".