121133120 has 56 divisors (see below), whose sum is σ = 297777408. Its totient is φ = 46886400.

The previous prime is 121133101. The next prime is 121133123. The reversal of 121133120 is 21331121.

It is a junction number, because it is equal to n+sod(n) for n = 121133095 and 121133104.

It is not an unprimeable number, because it can be changed into a prime (121133123) 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, 3815 + ... + 16025.

Almost surely, 2^121133120 is an apocalyptic number.

121133120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 121133120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (148888704).

121133120 is an abundant number, since it is smaller than the sum of its proper divisors (176644288).

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

121133120 is a wasteful number, since it uses less digits than its factorization.

121133120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12259 (or 12249 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 121133120 is about 11006.0492457557. The cubic root of 121133120 is about 494.7900616389.

Adding to 121133120 its reverse (21331121), we get a palindrome (142464241).

The spelling of 121133120 in words is "one hundred twenty-one million, one hundred thirty-three thousand, one hundred twenty".