121151105120 has 24 divisors (see below), whose sum is σ = 286219486224. Its totient is φ = 48460441984.

The previous prime is 121151105111. The next prime is 121151105129. The reversal of 121151105120 is 21501151121.

121151105120 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (121151105111) and next prime (121151105129).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 121151105092 and 121151105101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121151105129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 378597044 + ... + 378597363.

It is an arithmetic number, because the mean of its divisors is an integer number (11925811926).

Almost surely, 2^121151105120 is an apocalyptic number.

121151105120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121151105120 is an abundant number, since it is smaller than the sum of its proper divisors (165068381104).

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

121151105120 is an equidigital number, since it uses as much as digits as its factorization.

121151105120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 757194422 (or 757194414 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 20.

Adding to 121151105120 its reverse (21501151121), we get a palindrome (142652256241).

The spelling of 121151105120 in words is "one hundred twenty-one billion, one hundred fifty-one million, one hundred five thousand, one hundred twenty".