221441240134201 has 4 divisors (see below), whose sum is σ = 221444676966132. Its totient is φ = 221437803302272.

The previous prime is 221441240134139. The next prime is 221441240134229. The reversal of 221441240134201 is 102431042144122.

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 179136167198976 + 42305072935225 = 13384176^2 + 6504235^2 .

It is a cyclic number.

It is not a de Polignac number, because 221441240134201 - 2¹⁹ = 221441239609913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221441240134291) 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, 1718319316 + ... + 1718448181.

It is an arithmetic number, because the mean of its divisors is an integer number (55361169241533).

Almost surely, 2^{221441240134201} is an apocalyptic number.

It is an amenable number.

221441240134201 is a deficient number, since it is larger than the sum of its proper divisors (3436831931).

221441240134201 is an equidigital number, since it uses as much as digits as its factorization.

221441240134201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3436831930.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 221441240134201 its reverse (102431042144122), we get a palindrome (323872282278323).

The spelling of 221441240134201 in words is "two hundred twenty-one trillion, four hundred forty-one billion, two hundred forty million, one hundred thirty-four thousand, two hundred one".