999982231201 has 2 divisors, whose sum is σ = 999982231202. Its totient is φ = 999982231200.

The previous prime is 999982231189. The next prime is 999982231207. The reversal of 999982231201 is 102132289999.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 861464278801 + 138517952400 = 928151^2 + 372180^2 .

It is an emirp because it is prime and its reverse (102132289999) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 999982231201 - 2²⁹ = 999445360289 is a prime.

It is not a weakly prime, because it can be changed into another prime (999982231207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499991115600 + 499991115601.

It is an arithmetic number, because the mean of its divisors is an integer number (499991115601).

Almost surely, 2^999982231201 is an apocalyptic number.

It is an amenable number.

999982231201 is a deficient number, since it is larger than the sum of its proper divisors (1).

999982231201 is an equidigital number, since it uses as much as digits as its factorization.

999982231201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The spelling of 999982231201 in words is "nine hundred ninety-nine billion, nine hundred eighty-two million, two hundred thirty-one thousand, two hundred one".