121120110120 has 128 divisors (see below), whose sum is σ = 385162698240. Its totient is φ = 30364938240.

The previous prime is 121120110119. The next prime is 121120110127. The reversal of 121120110120 is 21011021121.

121120110120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 121120110096 and 121120110105.

It is not an unprimeable number, because it can be changed into a prime (121120110127) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1825854 + ... + 1891026.

It is an arithmetic number, because the mean of its divisors is an integer number (3009083580).

Almost surely, 2^121120110120 is an apocalyptic number.

121120110120 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 121120110120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (192581349120).

121120110120 is an abundant number, since it is smaller than the sum of its proper divisors (264042588120).

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

121120110120 is a wasteful number, since it uses less digits than its factorization.

121120110120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66115 (or 66111 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 121120110120 its reverse (21011021121), we get a palindrome (142131131241).

The spelling of 121120110120 in words is "one hundred twenty-one billion, one hundred twenty million, one hundred ten thousand, one hundred twenty".