222113122129777 has 2 divisors, whose sum is σ = 222113122129778. Its totient is φ = 222113122129776.

The previous prime is 222113122129741. The next prime is 222113122129807. The reversal of 222113122129777 is 777921221311222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 115751110395361 + 106362011734416 = 10758769^2 + 10313196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222113122129777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222113122129777.

It is not a weakly prime, because it can be changed into another prime (222113122129727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111056561064888 + 111056561064889.

It is an arithmetic number, because the mean of its divisors is an integer number (111056561064889).

Almost surely, 2^{222113122129777} is an apocalyptic number.

It is an amenable number.

222113122129777 is a deficient number, since it is larger than the sum of its proper divisors (1).

222113122129777 is an equidigital number, since it uses as much as digits as its factorization.

222113122129777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 592704, while the sum is 49.

The spelling of 222113122129777 in words is "two hundred twenty-two trillion, one hundred thirteen billion, one hundred twenty-two million, one hundred twenty-nine thousand, seven hundred seventy-seven".