197222065969 has 2 divisors, whose sum is σ = 197222065970. Its totient is φ = 197222065968.

The previous prime is 197222065903. The next prime is 197222065991. The reversal of 197222065969 is 969560222791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 191570785344 + 5651280625 = 437688^2 + 75175^2 .

It is a cyclic number.

It is not a de Polignac number, because 197222065969 - 2⁹ = 197222065457 is a prime.

It is a super-2 number, since 2×197222065969² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (197222065669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 98611032984 + 98611032985.

It is an arithmetic number, because the mean of its divisors is an integer number (98611032985).

Almost surely, 2^197222065969 is an apocalyptic number.

It is an amenable number.

197222065969 is a deficient number, since it is larger than the sum of its proper divisors (1).

197222065969 is an equidigital number, since it uses as much as digits as its factorization.

197222065969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7348320, while the sum is 58.

The spelling of 197222065969 in words is "one hundred ninety-seven billion, two hundred twenty-two million, sixty-five thousand, nine hundred sixty-nine".