7911220010101 has 2 divisors, whose sum is σ = 7911220010102. Its totient is φ = 7911220010100.

The previous prime is 7911220010077. The next prime is 7911220010119. The reversal of 7911220010101 is 1010100221197.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5556514415076 + 2354705595025 = 2357226^2 + 1534505^2 .

It is an emirp because it is prime and its reverse (1010100221197) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7911220010101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7911220013101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3955610005050 + 3955610005051.

It is an arithmetic number, because the mean of its divisors is an integer number (3955610005051).

Almost surely, 2^{7911220010101} is an apocalyptic number.

It is an amenable number.

7911220010101 is a deficient number, since it is larger than the sum of its proper divisors (1).

7911220010101 is an equidigital number, since it uses as much as digits as its factorization.

7911220010101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 25.

Adding to 7911220010101 its reverse (1010100221197), we get a palindrome (8921320231298).

The spelling of 7911220010101 in words is "seven trillion, nine hundred eleven billion, two hundred twenty million, ten thousand, one hundred one".