1100001219997 has 2 divisors, whose sum is σ = 1100001219998. Its totient is φ = 1100001219996.

The previous prime is 1100001219953. The next prime is 1100001220027. The reversal of 1100001219997 is 7999121000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1078303635396 + 21697584601 = 1038414^2 + 147301^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100001219997 - 2³¹ = 1097853736349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100001279997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000609998 + 550000609999.

It is an arithmetic number, because the mean of its divisors is an integer number (550000609999).

Almost surely, 2^{1100001219997} is an apocalyptic number.

It is an amenable number.

1100001219997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100001219997 is an equidigital number, since it uses as much as digits as its factorization.

1100001219997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 40.

The spelling of 1100001219997 in words is "one trillion, one hundred billion, one million, two hundred nineteen thousand, nine hundred ninety-seven".