221003033221133 has 4 divisors (see below), whose sum is σ = 221119289421468. Its totient is φ = 220886777020800.

The previous prime is 221003033221127. The next prime is 221003033221183. The reversal of 221003033221133 is 331122330300122.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7296146495044 + 213706886726089 = 2701138^2 + 14618717^2 .

It is a cyclic number.

It is not a de Polignac number, because 221003033221133 - 2⁸ = 221003033220877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221003033221183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58128097316 + ... + 58128101117.

It is an arithmetic number, because the mean of its divisors is an integer number (55279822355367).

Almost surely, 2^{221003033221133} is an apocalyptic number.

It is an amenable number.

221003033221133 is a deficient number, since it is larger than the sum of its proper divisors (116256200335).

221003033221133 is a wasteful number, since it uses less digits than its factorization.

221003033221133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116256200334.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 221003033221133 its reverse (331122330300122), we get a palindrome (552125363521255).

The spelling of 221003033221133 in words is "two hundred twenty-one trillion, three billion, thirty-three million, two hundred twenty-one thousand, one hundred thirty-three".