121144452 has 96 divisors (see below), whose sum is σ = 334623744. Its totient is φ = 33628800.

The previous prime is 121144451. The next prime is 121144481. The reversal of 121144452 is 254441121.

It is a super-3 number, since 3×121144452³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (121144451) 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, 389377 + ... + 389687.

It is an arithmetic number, because the mean of its divisors is an integer number (3485664).

Almost surely, 2^121144452 is an apocalyptic number.

121144452 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 121144452, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (167311872).

121144452 is an abundant number, since it is smaller than the sum of its proper divisors (213479292).

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

121144452 is a wasteful number, since it uses less digits than its factorization.

121144452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569 (or 567 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 121144452 is about 11006.5640415163. The cubic root of 121144452 is about 494.8054903566.

Adding to 121144452 its reverse (254441121), we get a palindrome (375585573).

The spelling of 121144452 in words is "one hundred twenty-one million, one hundred forty-four thousand, four hundred fifty-two".