121328821336 has 16 divisors (see below), whose sum is σ = 228511684800. Its totient is φ = 60392372064.

The previous prime is 121328821333. The next prime is 121328821349. The reversal of 121328821336 is 633128823121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121328821333) 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 3 ways as a sum of consecutive naturals, for example, 34002931 + ... + 34006498.

It is an arithmetic number, because the mean of its divisors is an integer number (14281980300).

Almost surely, 2^121328821336 is an apocalyptic number.

It is an amenable number.

121328821336 is a deficient number, since it is larger than the sum of its proper divisors (107182863464).

121328821336 is a wasteful number, since it uses less digits than its factorization.

121328821336 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68009658 (or 68009654 counting only the distinct ones).

The product of its digits is 82944, while the sum is 40.

The spelling of 121328821336 in words is "one hundred twenty-one billion, three hundred twenty-eight million, eight hundred twenty-one thousand, three hundred thirty-six".