121335441 has 16 divisors (see below), whose sum is σ = 167384448. Its totient is φ = 78128000.

The previous prime is 121335439. The next prime is 121335493. The reversal of 121335441 is 144533121.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 121335441 - 2¹ = 121335439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121335241) 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, 7540 + ... + 17306.

It is an arithmetic number, because the mean of its divisors is an integer number (10461528).

Almost surely, 2^121335441 is an apocalyptic number.

It is an amenable number.

121335441 is a deficient number, since it is larger than the sum of its proper divisors (46049007).

121335441 is a wasteful number, since it uses less digits than its factorization.

121335441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9912.

The product of its digits is 1440, while the sum is 24.

The square root of 121335441 is about 11015.2367654990. The cubic root of 121335441 is about 495.0653806100.

Adding to 121335441 its reverse (144533121), we get a palindrome (265868562).

The spelling of 121335441 in words is "one hundred twenty-one million, three hundred thirty-five thousand, four hundred forty-one".