12110021009 has 8 divisors (see below), whose sum is σ = 13236000768. Its totient is φ = 11029999680.

The previous prime is 12110020981. The next prime is 12110021029. The reversal of 12110021009 is 90012001121.

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

It is a cyclic number.

It is not a de Polignac number, because 12110021009 - 2¹² = 12110016913 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12110021029) 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 7 ways as a sum of consecutive naturals, for example, 11489057 + ... + 11490110.

It is an arithmetic number, because the mean of its divisors is an integer number (1654500096).

Almost surely, 2^12110021009 is an apocalyptic number.

It is an amenable number.

12110021009 is a deficient number, since it is larger than the sum of its proper divisors (1125979759).

12110021009 is a wasteful number, since it uses less digits than its factorization.

12110021009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22979215.

The product of its (nonzero) digits is 36, while the sum is 17.

The spelling of 12110021009 in words is "twelve billion, one hundred ten million, twenty-one thousand, nine".