12000011020 has 24 divisors (see below), whose sum is σ = 25202366784. Its totient is φ = 4799558016.

The previous prime is 12000010991. The next prime is 12000011027. The reversal of 12000011020 is 2011000021.

It is a junction number, because it is equal to n+sod(n) for n = 12000010994 and 12000011012.

It is not an unprimeable number, because it can be changed into a prime (12000011027) 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, 270232 + ... + 311488.

It is an arithmetic number, because the mean of its divisors is an integer number (1050098616).

Almost surely, 2^12000011020 is an apocalyptic number.

12000011020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000011020 is an abundant number, since it is smaller than the sum of its proper divisors (13202355764).

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

12000011020 is a wasteful number, since it uses less digits than its factorization.

12000011020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55809 (or 55807 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

Adding to 12000011020 its reverse (2011000021), we get a palindrome (14011011041).

It can be divided in two parts, 1200001 and 1020, that added together give a palindrome (1201021).

The spelling of 12000011020 in words is "twelve billion, eleven thousand, twenty".