12011219896 has 64 divisors (see below), whose sum is σ = 25337632320. Its totient is φ = 5296389120.

The previous prime is 12011219887. The next prime is 12011219897. The reversal of 12011219896 is 69891211021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011219897) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2468506 + ... + 2473366.

It is an arithmetic number, because the mean of its divisors is an integer number (395900505).

Almost surely, 2^12011219896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011219896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12668816160).

12011219896 is an abundant number, since it is smaller than the sum of its proper divisors (13326412424).

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

12011219896 is a wasteful number, since it uses less digits than its factorization.

12011219896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5936 (or 5932 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 40.

The spelling of 12011219896 in words is "twelve billion, eleven million, two hundred nineteen thousand, eight hundred ninety-six".