121425252 has 48 divisors (see below), whose sum is σ = 311630592. Its totient is φ = 36564480.

The previous prime is 121425217. The next prime is 121425277. The reversal of 121425252 is 252524121.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 949 + ... + 15612.

It is an arithmetic number, because the mean of its divisors is an integer number (6492304).

Almost surely, 2^121425252 is an apocalyptic number.

121425252 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 121425252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155815296).

121425252 is an abundant number, since it is smaller than the sum of its proper divisors (190205340).

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

121425252 is a wasteful number, since it uses less digits than its factorization.

121425252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16628 (or 16626 counting only the distinct ones).

The product of its digits is 1600, while the sum is 24.

The square root of 121425252 is about 11019.3126827402. The cubic root of 121425252 is about 495.1874975856.

Adding to 121425252 its reverse (252524121), we get a palindrome (373949373).

The spelling of 121425252 in words is "one hundred twenty-one million, four hundred twenty-five thousand, two hundred fifty-two".