121120120020200 has 192 divisors, whose sum is σ = 328482190080000. Its totient is φ = 40671752509440.

The previous prime is 121120120020169. The next prime is 121120120020217. The reversal of 121120120020200 is 2020021021121.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 40785401 + ... + 43654199.

It is an arithmetic number, because the mean of its divisors is an integer number (1710844740000).

Almost surely, 2^{121120120020200} is an apocalyptic number.

121120120020200 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 121120120020200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164241095040000).

121120120020200 is an abundant number, since it is smaller than the sum of its proper divisors (207362070059800).

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

121120120020200 is a wasteful number, since it uses less digits than its factorization.

121120120020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2869444 (or 2869435 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 121120120020200 its reverse (2020021021121), we get a palindrome (123140141041321).

The spelling of 121120120020200 in words is "one hundred twenty-one trillion, one hundred twenty billion, one hundred twenty million, twenty thousand, two hundred".