221234040241 has 8 divisors (see below), whose sum is σ = 239961169224. Its totient is φ = 203141729280.

The previous prime is 221234040211. The next prime is 221234040263. The reversal of 221234040241 is 142040432122.

It can be written as a sum of positive squares in 4 ways, for example, as 74930850225 + 146303190016 = 273735^2 + 382496^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 221234040241 - 2²⁷ = 221099822513 is a prime.

It is a super-2 number, since 2×221234040241² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221234040211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 158703780 + ... + 158705173.

It is an arithmetic number, because the mean of its divisors is an integer number (29995146153).

Almost surely, 2^221234040241 is an apocalyptic number.

It is an amenable number.

221234040241 is a deficient number, since it is larger than the sum of its proper divisors (18727128983).

221234040241 is a wasteful number, since it uses less digits than its factorization.

221234040241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 317409011.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 221234040241 its reverse (142040432122), we get a palindrome (363274472363).

The spelling of 221234040241 in words is "two hundred twenty-one billion, two hundred thirty-four million, forty thousand, two hundred forty-one".