121101120 has 168 divisors, whose sum is σ = 476121984. Its totient is φ = 27675648.

The previous prime is 121101119. The next prime is 121101133. The reversal of 121101120 is 21101121.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (168).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a super Niven number, because it is divisible the sum of any subset of its (nonzero) digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17157 + ... + 23163.

Almost surely, 2^121101120 is an apocalyptic number.

121101120 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 121101120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238060992).

121101120 is an abundant number, since it is smaller than the sum of its proper divisors (355020864).

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

121101120 is a wasteful number, since it uses less digits than its factorization.

121101120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037 (or 6024 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

The square root of 121101120 is about 11004.5954037393. The cubic root of 121101120 is about 494.7464878791.

Adding to 121101120 its reverse (21101121), we get a palindrome (142202241).

Subtracting from 121101120 its reverse (21101121), we obtain a palindrome (99999999).

The spelling of 121101120 in words is "one hundred twenty-one million, one hundred one thousand, one hundred twenty".