1000222011197 has 2 divisors, whose sum is σ = 1000222011198. Its totient is φ = 1000222011196.

The previous prime is 1000222011073. The next prime is 1000222011203. The reversal of 1000222011197 is 7911102220001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 738558047236 + 261663963961 = 859394^2 + 511531^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000222011197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000222016197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500111005598 + 500111005599.

It is an arithmetic number, because the mean of its divisors is an integer number (500111005599).

Almost surely, 2^{1000222011197} is an apocalyptic number.

It is an amenable number.

1000222011197 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000222011197 is an equidigital number, since it uses as much as digits as its factorization.

1000222011197 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 26.

Adding to 1000222011197 its reverse (7911102220001), we get a palindrome (8911324231198).

The spelling of 1000222011197 in words is "one trillion, two hundred twenty-two million, eleven thousand, one hundred ninety-seven".