121329208844 has 24 divisors (see below), whose sum is σ = 217735362768. Its totient is φ = 59125227840.

The previous prime is 121329208843. The next prime is 121329208853. The reversal of 121329208844 is 448802923121.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 121329208795 and 121329208804.

It is not an unprimeable number, because it can be changed into a prime (121329208843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 685787 + ... + 844370.

It is an arithmetic number, because the mean of its divisors is an integer number (9072306782).

Almost surely, 2^121329208844 is an apocalyptic number.

It is an amenable number.

121329208844 is a deficient number, since it is larger than the sum of its proper divisors (96406153924).

121329208844 is a wasteful number, since it uses less digits than its factorization.

121329208844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1530665 (or 1530663 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 44.

The spelling of 121329208844 in words is "one hundred twenty-one billion, three hundred twenty-nine million, two hundred eight thousand, eight hundred forty-four".