12065105220 has 96 divisors (see below), whose sum is σ = 39042259200. Its totient is φ = 2726744064.

The previous prime is 12065105191. The next prime is 12065105243. The reversal of 12065105220 is 2250156021.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 124005 + ... + 198764.

It is an arithmetic number, because the mean of its divisors is an integer number (406690200).

Almost surely, 2^12065105220 is an apocalyptic number.

12065105220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12065105220 is an abundant number, since it is smaller than the sum of its proper divisors (26977153980).

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

12065105220 is a wasteful number, since it uses less digits than its factorization.

12065105220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322877 (or 322875 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 12065105220 in words is "twelve billion, sixty-five million, one hundred five thousand, two hundred twenty".