12211489511898 has 8 divisors (see below), whose sum is σ = 24422979023808. Its totient is φ = 4070496503964.

The previous prime is 12211489511857. The next prime is 12211489511957. The reversal of 12211489511898 is 89811598411221.

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

12211489511898 is an admirable number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1017624125986 + ... + 1017624125997.

It is an arithmetic number, because the mean of its divisors is an integer number (3052872377976).

Almost surely, 2^{12211489511898} is an apocalyptic number.

12211489511898 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12211489511898 is a wasteful number, since it uses less digits than its factorization.

12211489511898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2035248251988.

The product of its digits is 3317760, while the sum is 60.

The spelling of 12211489511898 in words is "twelve trillion, two hundred eleven billion, four hundred eighty-nine million, five hundred eleven thousand, eight hundred ninety-eight".