121330044021 has 8 divisors (see below), whose sum is σ = 171289473984. Its totient is φ = 76128655040.

The previous prime is 121330044019. The next prime is 121330044041. The reversal of 121330044021 is 120440033121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121330044021 - 2¹ = 121330044019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121330044001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1189510185 + ... + 1189510286.

It is an arithmetic number, because the mean of its divisors is an integer number (21411184248).

Almost surely, 2^121330044021 is an apocalyptic number.

It is an amenable number.

121330044021 is a deficient number, since it is larger than the sum of its proper divisors (49959429963).

121330044021 is a wasteful number, since it uses less digits than its factorization.

121330044021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379020491.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 121330044021 its reverse (120440033121), we get a palindrome (241770077142).

The spelling of 121330044021 in words is "one hundred twenty-one billion, three hundred thirty million, forty-four thousand, twenty-one".