12402411121 has 16 divisors (see below), whose sum is σ = 13086178560. Its totient is φ = 11736204480.

The previous prime is 12402411107. The next prime is 12402411157. The reversal of 12402411121 is 12111420421.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12402411121 - 2⁹ = 12402410609 is a prime.

It is a super-2 number, since 2×12402411121² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12402415121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1630036 + ... + 1637626.

It is an arithmetic number, because the mean of its divisors is an integer number (817886160).

Almost surely, 2^12402411121 is an apocalyptic number.

It is an amenable number.

12402411121 is a deficient number, since it is larger than the sum of its proper divisors (683767439).

12402411121 is a wasteful number, since it uses less digits than its factorization.

12402411121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8736.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12402411121 its reverse (12111420421), we get a palindrome (24513831542).

The spelling of 12402411121 in words is "twelve billion, four hundred two million, four hundred eleven thousand, one hundred twenty-one".