121051152 has 160 divisors (see below), whose sum is σ = 376047360. Its totient is φ = 37140480.

The previous prime is 121051129. The next prime is 121051157. The reversal of 121051152 is 251150121.

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

It is not an unprimeable number, because it can be changed into a prime (121051157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 389077 + ... + 389387.

It is an arithmetic number, because the mean of its divisors is an integer number (2350296).

Almost surely, 2^121051152 is an apocalyptic number.

121051152 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 121051152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188023680).

121051152 is an abundant number, since it is smaller than the sum of its proper divisors (254996208).

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

121051152 is a wasteful number, since it uses less digits than its factorization.

121051152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 398 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 121051152 is about 11002.3248452316. The cubic root of 121051152 is about 494.6784320994.

The spelling of 121051152 in words is "one hundred twenty-one million, fifty-one thousand, one hundred fifty-two".