121223330320 has 40 divisors (see below), whose sum is σ = 296678154240. Its totient is φ = 45937261440.

The previous prime is 121223330297. The next prime is 121223330323. The reversal of 121223330320 is 23033322121.

It is a tau number, because it is divible by the number of its divisors (40).

It is a junction number, because it is equal to n+sod(n) for n = 121223330291 and 121223330300.

It is not an unprimeable number, because it can be changed into a prime (121223330323) 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 7 ways as a sum of consecutive naturals, for example, 39874576 + ... + 39877615.

It is an arithmetic number, because the mean of its divisors is an integer number (7416953856).

Almost surely, 2^121223330320 is an apocalyptic number.

121223330320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121223330320 is an abundant number, since it is smaller than the sum of its proper divisors (175454823920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121223330320 is a wasteful number, since it uses less digits than its factorization.

121223330320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79752223 (or 79752217 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 121223330320 its reverse (23033322121), we get a palindrome (144256652441).

The spelling of 121223330320 in words is "one hundred twenty-one billion, two hundred twenty-three million, three hundred thirty thousand, three hundred twenty".