233133313033221 has 32 divisors (see below), whose sum is σ = 315919477478400. Its totient is φ = 152891184821760.

The previous prime is 233133313033193. The next prime is 233133313033333. The reversal of 233133313033221 is 122330313331332.

It is not a de Polignac number, because 233133313033221 - 2¹⁰ = 233133313032197 is a prime.

It is a super-2 number, since 2×233133313033221² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233133313037221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 619565466 + ... + 619941636.

It is an arithmetic number, because the mean of its divisors is an integer number (9872483671200).

Almost surely, 2^{233133313033221} is an apocalyptic number.

It is an amenable number.

233133313033221 is a deficient number, since it is larger than the sum of its proper divisors (82786164445179).

233133313033221 is a wasteful number, since it uses less digits than its factorization.

233133313033221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 380489.

The product of its (nonzero) digits is 52488, while the sum is 33.

Adding to 233133313033221 its reverse (122330313331332), we get a palindrome (355463626364553).

The spelling of 233133313033221 in words is "two hundred thirty-three trillion, one hundred thirty-three billion, three hundred thirteen million, thirty-three thousand, two hundred twenty-one".