12267008020 has 12 divisors (see below), whose sum is σ = 25760716884. Its totient is φ = 4906803200.

The previous prime is 12267007969. The next prime is 12267008021. The reversal of 12267008020 is 2080076221.

It can be written as a sum of positive squares in 2 ways, for example, as 4336749316 + 7930258704 = 65854^2 + 89052^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 12267008020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12267008021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 306675181 + ... + 306675220.

It is an arithmetic number, because the mean of its divisors is an integer number (2146726407).

Almost surely, 2^12267008020 is an apocalyptic number.

12267008020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12267008020 is an abundant number, since it is smaller than the sum of its proper divisors (13493708864).

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

12267008020 is a wasteful number, since it uses less digits than its factorization.

12267008020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613350410 (or 613350408 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 28.

The spelling of 12267008020 in words is "twelve billion, two hundred sixty-seven million, eight thousand, twenty".