12227125308540 has 48 divisors (see below), whose sum is σ = 34274811342240. Its totient is φ = 3256865751040.

The previous prime is 12227125308539. The next prime is 12227125308547. The reversal of 12227125308540 is 4580352172221.

It is a junction number, because it is equal to n+sod(n) for n = 12227125308492 and 12227125308501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12227125308547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 115602885 + ... + 115708604.

It is an arithmetic number, because the mean of its divisors is an integer number (714058569630).

Almost surely, 2^{12227125308540} is an apocalyptic number.

12227125308540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12227125308540 is an abundant number, since it is smaller than the sum of its proper divisors (22047686033700).

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

12227125308540 is a wasteful number, since it uses less digits than its factorization.

12227125308540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231312382 (or 231312380 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 42.

The spelling of 12227125308540 in words is "twelve trillion, two hundred twenty-seven billion, one hundred twenty-five million, three hundred eight thousand, five hundred forty".