12400241562121 has 24 divisors (see below), whose sum is σ = 14761705901184. Its totient is φ = 10380559926240.

The previous prime is 12400241562113. The next prime is 12400241562173. The reversal of 12400241562121 is 12126514200421.

It is not a de Polignac number, because 12400241562121 - 2³ = 12400241562113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12400241562521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21162336 + ... + 21740398.

It is an arithmetic number, because the mean of its divisors is an integer number (615071079216).

Almost surely, 2^{12400241562121} is an apocalyptic number.

It is an amenable number.

12400241562121 is a deficient number, since it is larger than the sum of its proper divisors (2361464339063).

12400241562121 is a wasteful number, since it uses less digits than its factorization.

12400241562121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 588301 (or 588294 counting only the distinct ones).

The product of its (nonzero) digits is 7680, while the sum is 31.

Adding to 12400241562121 its reverse (12126514200421), we get a palindrome (24526755762542).

The spelling of 12400241562121 in words is "twelve trillion, four hundred billion, two hundred forty-one million, five hundred sixty-two thousand, one hundred twenty-one".