122400241521 has 8 divisors (see below), whose sum is σ = 163202110944. Its totient is φ = 81599266560.

The previous prime is 122400241511. The next prime is 122400241529. The reversal of 122400241521 is 125142004221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 122400241521 - 2²¹ = 122398144369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122400241491 and 122400241500.

It is not an unprimeable number, because it can be changed into a prime (122400241529) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223270 + ... + 542816.

It is an arithmetic number, because the mean of its divisors is an integer number (20400263868).

Almost surely, 2^122400241521 is an apocalyptic number.

It is an amenable number.

122400241521 is a deficient number, since it is larger than the sum of its proper divisors (40801869423).

122400241521 is a wasteful number, since it uses less digits than its factorization.

122400241521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 447231.

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

Adding to 122400241521 its reverse (125142004221), we get a palindrome (247542245742).

The spelling of 122400241521 in words is "one hundred twenty-two billion, four hundred million, two hundred forty-one thousand, five hundred twenty-one".