201441121 has 4 divisors (see below), whose sum is σ = 230218432. Its totient is φ = 172663812.

The previous prime is 201441113. The next prime is 201441151. The reversal of 201441121 is 121144102.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 121144102 = 2 ⋅60572051.

It is a cyclic number.

It is not a de Polignac number, because 201441121 - 2³ = 201441113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201441095 and 201441104.

It is not an unprimeable number, because it can be changed into a prime (201441151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14388645 + ... + 14388658.

It is an arithmetic number, because the mean of its divisors is an integer number (57554608).

Almost surely, 2^201441121 is an apocalyptic number.

It is an amenable number.

201441121 is a deficient number, since it is larger than the sum of its proper divisors (28777311).

201441121 is an equidigital number, since it uses as much as digits as its factorization.

201441121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28777310.

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 201441121 is about 14192.9954907342. The cubic root of 201441121 is about 586.2048084907.

Adding to 201441121 its reverse (121144102), we get a palindrome (322585223).

The spelling of 201441121 in words is "two hundred one million, four hundred forty-one thousand, one hundred twenty-one".