12266880420 has 192 divisors, whose sum is σ = 36162846720. Its totient is φ = 3103142400.

The previous prime is 12266880419. The next prime is 12266880443. The reversal of 12266880420 is 2408866221.

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 63 ways as a sum of consecutive naturals, for example, 27942561 + ... + 27942999.

It is an arithmetic number, because the mean of its divisors is an integer number (188348160).

Almost surely, 2^12266880420 is an apocalyptic number.

12266880420 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 12266880420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18081423360).

12266880420 is an abundant number, since it is smaller than the sum of its proper divisors (23895966300).

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

12266880420 is a wasteful number, since it uses less digits than its factorization.

12266880420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746 (or 744 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The spelling of 12266880420 in words is "twelve billion, two hundred sixty-six million, eight hundred eighty thousand, four hundred twenty".