222115806697 has 2 divisors, whose sum is σ = 222115806698. Its totient is φ = 222115806696.

The previous prime is 222115806683. The next prime is 222115806719. The reversal of 222115806697 is 796608511222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214571841961 + 7543964736 = 463219^2 + 86856^2 .

It is a cyclic number.

It is not a de Polignac number, because 222115806697 - 2¹¹ = 222115804649 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222115806697.

It is not a weakly prime, because it can be changed into another prime (222115806607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111057903348 + 111057903349.

It is an arithmetic number, because the mean of its divisors is an integer number (111057903349).

Almost surely, 2^222115806697 is an apocalyptic number.

It is an amenable number.

222115806697 is a deficient number, since it is larger than the sum of its proper divisors (1).

222115806697 is an equidigital number, since it uses as much as digits as its factorization.

222115806697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 49.

The spelling of 222115806697 in words is "two hundred twenty-two billion, one hundred fifteen million, eight hundred six thousand, six hundred ninety-seven".