12207476820 has 288 divisors, whose sum is σ = 45661432320. Its totient is φ = 2402991360.

The previous prime is 12207476819. The next prime is 12207476857. The reversal of 12207476820 is 2867470221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 604527 + ... + 624393.

It is an arithmetic number, because the mean of its divisors is an integer number (158546640).

Almost surely, 2^12207476820 is an apocalyptic number.

12207476820 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 12207476820, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22830716160).

12207476820 is an abundant number, since it is smaller than the sum of its proper divisors (33453955500).

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

12207476820 is a wasteful number, since it uses less digits than its factorization.

12207476820 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19923 (or 19914 counting only the distinct ones).

The product of its (nonzero) digits is 75264, while the sum is 39.

The spelling of 12207476820 in words is "twelve billion, two hundred seven million, four hundred seventy-six thousand, eight hundred twenty".