222100200209197 has 2 divisors, whose sum is σ = 222100200209198. Its totient is φ = 222100200209196.

The previous prime is 222100200209143. The next prime is 222100200209207. The reversal of 222100200209197 is 791902002001222.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132271298857476 + 89828901351721 = 11500926^2 + 9477811^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-222100200209197 is a prime.

It is a super-2 number, since 2×222100200209197² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222100200209597) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111050100104598 + 111050100104599.

It is an arithmetic number, because the mean of its divisors is an integer number (111050100104599).

Almost surely, 2^{222100200209197} is an apocalyptic number.

It is an amenable number.

222100200209197 is a deficient number, since it is larger than the sum of its proper divisors (1).

222100200209197 is an equidigital number, since it uses as much as digits as its factorization.

222100200209197 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18144, while the sum is 37.

The spelling of 222100200209197 in words is "two hundred twenty-two trillion, one hundred billion, two hundred million, two hundred nine thousand, one hundred ninety-seven".