221441242311 has 16 divisors (see below), whose sum is σ = 338643717120. Its totient is φ = 142865317080.

The previous prime is 221441242301. The next prime is 221441242333. The reversal of 221441242311 is 113242144122.

221441242311 is a `hidden beast` number, since 2 + 2 + 14 + 412 + 4 + 231 + 1 = 666.

It is not a de Polignac number, because 221441242311 - 2²¹ = 221439145159 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221441242301) 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, 132281865 + ... + 132283538.

It is an arithmetic number, because the mean of its divisors is an integer number (21165232320).

Almost surely, 2^221441242311 is an apocalyptic number.

221441242311 is a deficient number, since it is larger than the sum of its proper divisors (117202474809).

221441242311 is a wasteful number, since it uses less digits than its factorization.

221441242311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 264565443 (or 264565437 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 221441242311 its reverse (113242144122), we get a palindrome (334683386433).

The spelling of 221441242311 in words is "two hundred twenty-one billion, four hundred forty-one million, two hundred forty-two thousand, three hundred eleven".