12002122089 has 6 divisors (see below), whose sum is σ = 17336398586. Its totient is φ = 8001414720.

The previous prime is 12002122087. The next prime is 12002122159. The reversal of 12002122089 is 98022120021.

It can be written as a sum of positive squares in only one way, i.e., 8173606464 + 3828515625 = 90408^2 + 61875^2 .

It is not a de Polignac number, because 12002122089 - 2¹ = 12002122087 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12002122087) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 666784552 + ... + 666784569.

Almost surely, 2^12002122089 is an apocalyptic number.

It is an amenable number.

12002122089 is a deficient number, since it is larger than the sum of its proper divisors (5334276497).

12002122089 is a wasteful number, since it uses less digits than its factorization.

12002122089 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333569127 (or 1333569124 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The spelling of 12002122089 in words is "twelve billion, two million, one hundred twenty-two thousand, eighty-nine".