121330120 has 16 divisors (see below), whose sum is σ = 272992860. Its totient is φ = 48532032.

The previous prime is 121330109. The next prime is 121330123. The reversal of 121330120 is 21033121.

It can be written as a sum of positive squares in 2 ways, for example, as 119727364 + 1602756 = 10942^2 + 1266^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 121330120.

It is not an unprimeable number, because it can be changed into a prime (121330123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1516587 + ... + 1516666.

Almost surely, 2^121330120 is an apocalyptic number.

121330120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121330120 is an abundant number, since it is smaller than the sum of its proper divisors (151662740).

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

121330120 is a wasteful number, since it uses less digits than its factorization.

121330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3033264 (or 3033260 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 121330120 is about 11014.9952337711. The cubic root of 121330120 is about 495.0581436989.

Adding to 121330120 its reverse (21033121), we get a palindrome (142363241).

The spelling of 121330120 in words is "one hundred twenty-one million, three hundred thirty thousand, one hundred twenty".