1222208250097 has 2 divisors, whose sum is σ = 1222208250098. Its totient is φ = 1222208250096.

The previous prime is 1222208250061. The next prime is 1222208250101. The reversal of 1222208250097 is 7900528022221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 940426699536 + 281781550561 = 969756^2 + 530831^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222208250097 - 2²³ = 1222199861489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222208251097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611104125048 + 611104125049.

It is an arithmetic number, because the mean of its divisors is an integer number (611104125049).

Almost surely, 2^{1222208250097} is an apocalyptic number.

It is an amenable number.

1222208250097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222208250097 is an equidigital number, since it uses as much as digits as its factorization.

1222208250097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 1222208250097 in words is "one trillion, two hundred twenty-two billion, two hundred eight million, two hundred fifty thousand, ninety-seven".