121801325 has 12 divisors (see below), whose sum is σ = 155906688. Its totient is φ = 94297200.

The previous prime is 121801321. The next prime is 121801403. The reversal of 121801325 is 523108121.

It is a happy number.

It is not a de Polignac number, because 121801325 - 2² = 121801321 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121801325.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121801321) 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, 77807 + ... + 79356.

It is an arithmetic number, because the mean of its divisors is an integer number (12992224).

Almost surely, 2^121801325 is an apocalyptic number.

It is an amenable number.

121801325 is a deficient number, since it is larger than the sum of its proper divisors (34105363).

121801325 is a wasteful number, since it uses less digits than its factorization.

121801325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157204 (or 157199 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 23.

The square root of 121801325 is about 11036.3637580500. The cubic root of 121801325 is about 495.6981950919.

Adding to 121801325 its reverse (523108121), we get a palindrome (644909446).

The spelling of 121801325 in words is "one hundred twenty-one million, eight hundred one thousand, three hundred twenty-five".