121204020441 has 16 divisors (see below), whose sum is σ = 190649643008. Its totient is φ = 67025264400.

The previous prime is 121204020347. The next prime is 121204020467. The reversal of 121204020441 is 144020402121.

It is not a de Polignac number, because 121204020441 - 2¹¹ = 121204018393 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121204020481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93089995 + ... + 93091296.

It is an arithmetic number, because the mean of its divisors is an integer number (11915602688).

Almost surely, 2^121204020441 is an apocalyptic number.

It is an amenable number.

121204020441 is a deficient number, since it is larger than the sum of its proper divisors (69445622567).

121204020441 is a wasteful number, since it uses less digits than its factorization.

121204020441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186181332.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 121204020441 its reverse (144020402121), we get a palindrome (265224422562).

The spelling of 121204020441 in words is "one hundred twenty-one billion, two hundred four million, twenty thousand, four hundred forty-one".