211102020247 has 2 divisors, whose sum is σ = 211102020248. Its totient is φ = 211102020246.

The previous prime is 211102020191. The next prime is 211102020271. The reversal of 211102020247 is 742020201112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211102020247 - 2¹¹ = 211102018199 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211102020847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105551010123 + 105551010124.

It is an arithmetic number, because the mean of its divisors is an integer number (105551010124).

Almost surely, 2^211102020247 is an apocalyptic number.

211102020247 is a deficient number, since it is larger than the sum of its proper divisors (1).

211102020247 is an equidigital number, since it uses as much as digits as its factorization.

211102020247 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 22.

Adding to 211102020247 its reverse (742020201112), we get a palindrome (953122221359).

The spelling of 211102020247 in words is "two hundred eleven billion, one hundred two million, twenty thousand, two hundred forty-seven".