12011220192 has 96 divisors (see below), whose sum is σ = 31870153728. Its totient is φ = 3960621056.

The previous prime is 12011220187. The next prime is 12011220197. The reversal of 12011220192 is 29102211021.

It is an interprime number because it is at equal distance from previous prime (12011220187) and next prime (12011220197).

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011220197) 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, 9361183 + ... + 9362465.

It is an arithmetic number, because the mean of its divisors is an integer number (331980768).

Almost surely, 2^12011220192 is an apocalyptic number.

12011220192 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12011220192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15935076864).

12011220192 is an abundant number, since it is smaller than the sum of its proper divisors (19858933536).

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

12011220192 is a wasteful number, since it uses less digits than its factorization.

12011220192 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2272 (or 2264 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The spelling of 12011220192 in words is "twelve billion, eleven million, two hundred twenty thousand, one hundred ninety-two".