12089121989 has 8 divisors (see below), whose sum is σ = 13904141568. Its totient is φ = 10296102960.

The previous prime is 12089121983. The next prime is 12089122021. The reversal of 12089121989 is 98912198021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12089121989 is a prime.

It is a super-2 number, since 2×12089121989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

12089121989 is a modest number, since divided by 121989 gives 12089 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12089121983) 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, 5498957 + ... + 5501154.

It is an arithmetic number, because the mean of its divisors is an integer number (1738017696).

Almost surely, 2^12089121989 is an apocalyptic number.

It is an amenable number.

12089121989 is a deficient number, since it is larger than the sum of its proper divisors (1815019579).

12089121989 is a wasteful number, since it uses less digits than its factorization.

12089121989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11000275.

The product of its (nonzero) digits is 186624, while the sum is 50.

The spelling of 12089121989 in words is "twelve billion, eighty-nine million, one hundred twenty-one thousand, nine hundred eighty-nine".