121100233320 has 192 divisors, whose sum is σ = 429644217600. Its totient is φ = 29337884160.

The previous prime is 121100233313. The next prime is 121100233349. The reversal of 121100233320 is 23332001121.

121100233320 is a `hidden beast` number, since 1 + 2 + 110 + 0 + 233 + 320 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 121100233293 and 121100233302.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6378001 + ... + 6396959.

It is an arithmetic number, because the mean of its divisors is an integer number (2237730300).

Almost surely, 2^121100233320 is an apocalyptic number.

121100233320 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 121100233320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214822108800).

121100233320 is an abundant number, since it is smaller than the sum of its proper divisors (308543984280).

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

121100233320 is a wasteful number, since it uses less digits than its factorization.

121100233320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20600 (or 20593 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121100233320 its reverse (23332001121), we get a palindrome (144432234441).

The spelling of 121100233320 in words is "one hundred twenty-one billion, one hundred million, two hundred thirty-three thousand, three hundred twenty".