211002241 has 2 divisors, whose sum is σ = 211002242. Its totient is φ = 211002240.

The previous prime is 211002227. The next prime is 211002251. The reversal of 211002241 is 142200112.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 118919025 + 92083216 = 10905^2 + 9596^2 .

It is a cyclic number.

It is not a de Polignac number, because 211002241 - 2²¹ = 208905089 is a prime.

It is not a weakly prime, because it can be changed into another prime (211002251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105501120 + 105501121.

It is an arithmetic number, because the mean of its divisors is an integer number (105501121).

Almost surely, 2^211002241 is an apocalyptic number.

It is an amenable number.

211002241 is a deficient number, since it is larger than the sum of its proper divisors (1).

211002241 is an equidigital number, since it uses as much as digits as its factorization.

211002241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 211002241 is about 14525.9161845303. The cubic root of 211002241 is about 595.3362889587.

Adding to 211002241 its reverse (142200112), we get a palindrome (353202353).

The spelling of 211002241 in words is "two hundred eleven million, two thousand, two hundred forty-one".