97222001 has 2 divisors, whose sum is σ = 97222002. Its totient is φ = 97222000.

The previous prime is 97221973. The next prime is 97222079. The reversal of 97222001 is 10022279.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97219600 + 2401 = 9860^2 + 49^2 .

It is an emirp because it is prime and its reverse (10022279) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 97222001 - 2⁶ = 97221937 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (97222091) 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, 48611000 + 48611001.

It is an arithmetic number, because the mean of its divisors is an integer number (48611001).

Almost surely, 2^97222001 is an apocalyptic number.

It is an amenable number.

97222001 is a deficient number, since it is larger than the sum of its proper divisors (1).

97222001 is an equidigital number, since it uses as much as digits as its factorization.

97222001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 97222001 is about 9860.1217538122. The cubic root of 97222001 is about 459.8203473002.

The spelling of 97222001 in words is "ninety-seven million, two hundred twenty-two thousand, one".