1200002220097 has 2 divisors, whose sum is σ = 1200002220098. Its totient is φ = 1200002220096.

The previous prime is 1200002220047. The next prime is 1200002220127. The reversal of 1200002220097 is 7900222000021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1076273454096 + 123728766001 = 1037436^2 + 351751^2 .

It is a cyclic number.

It is not a de Polignac number, because 1200002220097 - 2³⁹ = 650246406209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1200002220037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600001110048 + 600001110049.

It is an arithmetic number, because the mean of its divisors is an integer number (600001110049).

Almost surely, 2^{1200002220097} is an apocalyptic number.

It is an amenable number.

1200002220097 is a deficient number, since it is larger than the sum of its proper divisors (1).

1200002220097 is an equidigital number, since it uses as much as digits as its factorization.

1200002220097 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The spelling of 1200002220097 in words is "one trillion, two hundred billion, two million, two hundred twenty thousand, ninety-seven".