121020033330 has 384 divisors, whose sum is σ = 392302310400. Its totient is φ = 25252577280.

The previous prime is 121020033319. The next prime is 121020033331. The reversal of 121020033330 is 33330020121.

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

It is not an unprimeable number, because it can be changed into a prime (121020033331) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 86503971 + ... + 86505369.

It is an arithmetic number, because the mean of its divisors is an integer number (1021620600).

Almost surely, 2^121020033330 is an apocalyptic number.

121020033330 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 121020033330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (196151155200).

121020033330 is an abundant number, since it is smaller than the sum of its proper divisors (271282277070).

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

121020033330 is a wasteful number, since it uses less digits than its factorization.

121020033330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674 (or 1671 counting only the distinct ones).

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

Adding to 121020033330 its reverse (33330020121), we get a palindrome (154350053451).

The spelling of 121020033330 in words is "one hundred twenty-one billion, twenty million, thirty-three thousand, three hundred thirty".