7911220200001 has 2 divisors, whose sum is σ = 7911220200002. Its totient is φ = 7911220200000.

The previous prime is 7911220199969. The next prime is 7911220200017. The reversal of 7911220200001 is 1000020221197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4890506679601 + 3020713520400 = 2211449^2 + 1738020^2 .

It is an emirp because it is prime and its reverse (1000020221197) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7911220200001 - 2⁵ = 7911220199969 is a prime.

It is not a weakly prime, because it can be changed into another prime (7911224200001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3955610100000 + 3955610100001.

It is an arithmetic number, because the mean of its divisors is an integer number (3955610100001).

Almost surely, 2^{7911220200001} is an apocalyptic number.

It is an amenable number.

7911220200001 is a deficient number, since it is larger than the sum of its proper divisors (1).

7911220200001 is an equidigital number, since it uses as much as digits as its factorization.

7911220200001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 7911220200001 its reverse (1000020221197), we get a palindrome (8911240421198).

The spelling of 7911220200001 in words is "seven trillion, nine hundred eleven billion, two hundred twenty million, two hundred thousand, one".