7211172193 has 2 divisors, whose sum is σ = 7211172194. Its totient is φ = 7211172192.

The previous prime is 7211172121. The next prime is 7211172203. The reversal of 7211172193 is 3912711127.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4498116624 + 2713055569 = 67068^2 + 52087^2 .

It is a cyclic number.

It is not a de Polignac number, because 7211172193 - 2¹³ = 7211164001 is a prime.

It is not a weakly prime, because it can be changed into another prime (7211172113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3605586096 + 3605586097.

It is an arithmetic number, because the mean of its divisors is an integer number (3605586097).

Almost surely, 2^7211172193 is an apocalyptic number.

It is an amenable number.

7211172193 is a deficient number, since it is larger than the sum of its proper divisors (1).

7211172193 is an equidigital number, since it uses as much as digits as its factorization.

7211172193 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5292, while the sum is 34.

The square root of 7211172193 is about 84918.6210026988. The cubic root of 7211172193 is about 1931.9770154488.

The spelling of 7211172193 in words is "seven billion, two hundred eleven million, one hundred seventy-two thousand, one hundred ninety-three".