121233330 has 48 divisors (see below), whose sum is σ = 318351384. Its totient is φ = 32006400.

The previous prime is 121233317. The next prime is 121233347. The reversal of 121233330 is 33332121.

It can be written as a sum of positive squares in 4 ways, for example, as 111703761 + 9529569 = 10569^2 + 3087^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2422 + ... + 15758.

Almost surely, 2^121233330 is an apocalyptic number.

121233330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121233330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (159175692).

121233330 is an abundant number, since it is smaller than the sum of its proper divisors (197118054).

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

121233330 is a wasteful number, since it uses less digits than its factorization.

121233330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13451 (or 13448 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 121233330 is about 11010.6008010462. The cubic root of 121233330 is about 494.9264659669.

Adding to 121233330 its reverse (33332121), we get a palindrome (154565451).

The spelling of 121233330 in words is "one hundred twenty-one million, two hundred thirty-three thousand, three hundred thirty".