12201999971 has 8 divisors (see below), whose sum is σ = 14322038880. Its totient is φ = 10176185088.

The previous prime is 12201999967. The next prime is 12201999977. The reversal of 12201999971 is 17999910221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12201999971 - 2² = 12201999967 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12201999977) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23555726 + ... + 23556243.

It is an arithmetic number, because the mean of its divisors is an integer number (1790254860).

Almost surely, 2^12201999971 is an apocalyptic number.

12201999971 is a deficient number, since it is larger than the sum of its proper divisors (2120038909).

12201999971 is an equidigital number, since it uses as much as digits as its factorization.

12201999971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47112013.

The product of its (nonzero) digits is 183708, while the sum is 50.

The spelling of 12201999971 in words is "twelve billion, two hundred one million, nine hundred ninety-nine thousand, nine hundred seventy-one".