121411152 has 60 divisors (see below), whose sum is σ = 347031360. Its totient is φ = 39607104.

The previous prime is 121411141. The next prime is 121411153. The reversal of 121411152 is 251114121.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121411153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2202 + ... + 15737.

It is an arithmetic number, because the mean of its divisors is an integer number (5783856).

Almost surely, 2^121411152 is an apocalyptic number.

121411152 is a gapful number since it is divisible by the number (12) 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 121411152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173515680).

121411152 is an abundant number, since it is smaller than the sum of its proper divisors (225620208).

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

121411152 is a wasteful number, since it uses less digits than its factorization.

121411152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18000 (or 17991 counting only the distinct ones).

The product of its digits is 80, while the sum is 18.

The square root of 121411152 is about 11018.6728783461. The cubic root of 121411152 is about 495.1683296506.

Adding to 121411152 its reverse (251114121), we get a palindrome (372525273).

The spelling of 121411152 in words is "one hundred twenty-one million, four hundred eleven thousand, one hundred fifty-two".