121110010111220 has 192 divisors, whose sum is σ = 277350248448000. Its totient is φ = 44156922163200.

The previous prime is 121110010111201. The next prime is 121110010111301. The reversal of 121110010111220 is 22111010011121.

121110010111220 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121110010111195 and 121110010111204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 26050763456 + ... + 26050768104.

It is an arithmetic number, because the mean of its divisors is an integer number (1444532544000).

Almost surely, 2^{121110010111220} is an apocalyptic number.

121110010111220 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 121110010111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138675124224000).

121110010111220 is an abundant number, since it is smaller than the sum of its proper divisors (156240238336780).

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

121110010111220 is a wasteful number, since it uses less digits than its factorization.

121110010111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8338 (or 8336 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 14.

Adding to 121110010111220 its reverse (22111010011121), we get a palindrome (143221020122341).

The spelling of 121110010111220 in words is "one hundred twenty-one trillion, one hundred ten billion, ten million, one hundred eleven thousand, two hundred twenty".