121244441 has 4 divisors (see below), whose sum is σ = 125155584. Its totient is φ = 117333300.

The previous prime is 121244423. The next prime is 121244521. The reversal of 121244441 is 144442121.

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.

It is a cyclic number.

It is not a de Polignac number, because 121244441 - 2¹⁸ = 120982297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121244401) 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, 1955525 + ... + 1955586.

It is an arithmetic number, because the mean of its divisors is an integer number (31288896).

Almost surely, 2^121244441 is an apocalyptic number.

It is an amenable number.

121244441 is a deficient number, since it is larger than the sum of its proper divisors (3911143).

121244441 is an equidigital number, since it uses as much as digits as its factorization.

121244441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3911142.

The product of its digits is 1024, while the sum is 23.

The square root of 121244441 is about 11011.1053486923. The cubic root of 121244441 is about 494.9415854613.

Adding to 121244441 its reverse (144442121), we get a palindrome (265686562).

The spelling of 121244441 in words is "one hundred twenty-one million, two hundred forty-four thousand, four hundred forty-one".