1000012099997 has 2 divisors, whose sum is σ = 1000012099998. Its totient is φ = 1000012099996.

The previous prime is 1000012099987. The next prime is 1000012100069. The reversal of 1000012099997 is 7999902100001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 965687497636 + 34324602361 = 982694^2 + 185269^2 .

It is a cyclic number.

It is not a de Polignac number, because 1000012099997 - 2²² = 1000007905693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000012099927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500006049998 + 500006049999.

It is an arithmetic number, because the mean of its divisors is an integer number (500006049999).

Almost surely, 2^{1000012099997} is an apocalyptic number.

It is an amenable number.

1000012099997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000012099997 is an equidigital number, since it uses as much as digits as its factorization.

1000012099997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 91854, while the sum is 47.

Adding to 1000012099997 its reverse (7999902100001), we get a palindrome (8999914199998).

The spelling of 1000012099997 in words is "one trillion, twelve million, ninety-nine thousand, nine hundred ninety-seven".