97012200203221 has 2 divisors, whose sum is σ = 97012200203222. Its totient is φ = 97012200203220.

The previous prime is 97012200203209. The next prime is 97012200203231. The reversal of 97012200203221 is 12230200221079.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94029287796900 + 2982912406321 = 9696870^2 + 1727111^2 .

It is an emirp because it is prime and its reverse (12230200221079) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97012200203221 - 2¹¹ = 97012200201173 is a prime.

It is a super-2 number, since 2×97012200203221² (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 (97012200203231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 48506100101610 + 48506100101611.

It is an arithmetic number, because the mean of its divisors is an integer number (48506100101611).

Almost surely, 2^{97012200203221} is an apocalyptic number.

It is an amenable number.

97012200203221 is a deficient number, since it is larger than the sum of its proper divisors (1).

97012200203221 is an equidigital number, since it uses as much as digits as its factorization.

97012200203221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The spelling of 97012200203221 in words is "ninety-seven trillion, twelve billion, two hundred million, two hundred three thousand, two hundred twenty-one".