12477222720 has 224 divisors, whose sum is σ = 44152352640. Its totient is φ = 3317022720.

The previous prime is 12477222691. The next prime is 12477222739. The reversal of 12477222720 is 2722277421.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3047875 + ... + 3051965.

Almost surely, 2^12477222720 is an apocalyptic number.

12477222720 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 12477222720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22076176320).

12477222720 is an abundant number, since it is smaller than the sum of its proper divisors (31675129920).

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

12477222720 is a wasteful number, since it uses less digits than its factorization.

12477222720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4470 (or 4454 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 36.

The spelling of 12477222720 in words is "twelve billion, four hundred seventy-seven million, two hundred twenty-two thousand, seven hundred twenty".