2197719101 has 2 divisors, whose sum is σ = 2197719102. Its totient is φ = 2197719100.

The previous prime is 2197719071. The next prime is 2197719109. The reversal of 2197719101 is 1019177912.

2197719101 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1882692100 + 315027001 = 43390^2 + 17749^2 .

It is a cyclic number.

It is not a de Polignac number, because 2197719101 - 2¹⁰ = 2197718077 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2197719109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1098859550 + 1098859551.

It is an arithmetic number, because the mean of its divisors is an integer number (1098859551).

Almost surely, 2^2197719101 is an apocalyptic number.

It is an amenable number.

2197719101 is a deficient number, since it is larger than the sum of its proper divisors (1).

2197719101 is an equidigital number, since it uses as much as digits as its factorization.

2197719101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7938, while the sum is 38.

The square root of 2197719101 is about 46879.8368277877. The cubic root of 2197719101 is about 1300.1418190449.

The spelling of 2197719101 in words is "two billion, one hundred ninety-seven million, seven hundred nineteen thousand, one hundred one".