12321613772250 has 32 divisors (see below), whose sum is σ = 30754747977408. Its totient is φ = 3285763672400.

The previous prime is 12321613772249. The next prime is 12321613772291. The reversal of 12321613772250 is 5227731612321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8214408432 + ... + 8214409931.

It is an arithmetic number, because the mean of its divisors is an integer number (961085874294).

Almost surely, 2^{12321613772250} is an apocalyptic number.

12321613772250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12321613772250 is an abundant number, since it is smaller than the sum of its proper divisors (18433134205158).

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

12321613772250 is a wasteful number, since it uses less digits than its factorization.

12321613772250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16428818383 (or 16428818373 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 12321613772250 in words is "twelve trillion, three hundred twenty-one billion, six hundred thirteen million, seven hundred seventy-two thousand, two hundred fifty".