211122097 has 2 divisors, whose sum is σ = 211122098. Its totient is φ = 211122096.

The previous prime is 211122071. The next prime is 211122101. The reversal of 211122097 is 790221112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 208484721 + 2637376 = 14439^2 + 1624^2 .

It is a cyclic number.

It is not a de Polignac number, because 211122097 - 2⁷ = 211121969 is a prime.

It is not a weakly prime, because it can be changed into another prime (211122007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105561048 + 105561049.

It is an arithmetic number, because the mean of its divisors is an integer number (105561049).

Almost surely, 2^211122097 is an apocalyptic number.

It is an amenable number.

211122097 is a deficient number, since it is larger than the sum of its proper divisors (1).

211122097 is an equidigital number, since it uses as much as digits as its factorization.

211122097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

The square root of 211122097 is about 14530.0411905817. The cubic root of 211122097 is about 595.4489909528.

The spelling of 211122097 in words is "two hundred eleven million, one hundred twenty-two thousand, ninety-seven".