12276002000 has 80 divisors (see below), whose sum is σ = 29720121600. Its totient is φ = 4904323200.

The previous prime is 12276001999. The next prime is 12276002021. The reversal of 12276002000 is 20067221.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1834661 + ... + 1841339.

It is an arithmetic number, because the mean of its divisors is an integer number (371501520).

Almost surely, 2^12276002000 is an apocalyptic number.

12276002000 is a gapful number since it is divisible by the number (10) 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 12276002000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14860060800).

12276002000 is an abundant number, since it is smaller than the sum of its proper divisors (17444119600).

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

12276002000 is an equidigital number, since it uses as much as digits as its factorization.

12276002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7621 (or 7605 counting only the distinct ones).

The product of its (nonzero) digits is 336, while the sum is 20.

Adding to 12276002000 its reverse (20067221), we get a palindrome (12296069221).

The spelling of 12276002000 in words is "twelve billion, two hundred seventy-six million, two thousand".