12012011120 has 40 divisors (see below), whose sum is σ = 28890963360. Its totient is φ = 4639120640.

The previous prime is 12012011117. The next prime is 12012011129. The reversal of 12012011120 is 2111021021.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×12012011120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012011129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2586476 + ... + 2591115.

It is an arithmetic number, because the mean of its divisors is an integer number (722274084).

Almost surely, 2^12012011120 is an apocalyptic number.

12012011120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12012011120 is an abundant number, since it is smaller than the sum of its proper divisors (16878952240).

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

12012011120 is a wasteful number, since it uses less digits than its factorization.

12012011120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5177633 (or 5177627 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12012011120 its reverse (2111021021), we get a palindrome (14123032141).

Subtracting from 12012011120 its reverse (2111021021), we obtain a palindrome (9900990099).

The spelling of 12012011120 in words is "twelve billion, twelve million, eleven thousand, one hundred twenty".