12110012421 has 32 divisors (see below), whose sum is σ = 17875148928. Its totient is φ = 7244225280.

The previous prime is 12110012419. The next prime is 12110012423. The reversal of 12110012421 is 12421001121.

It is an interprime number because it is at equal distance from previous prime (12110012419) and next prime (12110012423).

It is not a de Polignac number, because 12110012421 - 2¹ = 12110012419 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12110012421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12110012423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1882791 + ... + 1889211.

It is an arithmetic number, because the mean of its divisors is an integer number (558598404).

Almost surely, 2^12110012421 is an apocalyptic number.

It is an amenable number.

12110012421 is a deficient number, since it is larger than the sum of its proper divisors (5765136507).

12110012421 is a wasteful number, since it uses less digits than its factorization.

12110012421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7781.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 12110012421 its reverse (12421001121), we get a palindrome (24531013542).

The spelling of 12110012421 in words is "twelve billion, one hundred ten million, twelve thousand, four hundred twenty-one".