211220010271 has 2 divisors, whose sum is σ = 211220010272. Its totient is φ = 211220010270.

The previous prime is 211220010229. The next prime is 211220010311. The reversal of 211220010271 is 172010022112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211220010271 - 2²⁵ = 211186455839 is a prime.

It is a super-2 number, since 2×211220010271² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211220010571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105610005135 + 105610005136.

It is an arithmetic number, because the mean of its divisors is an integer number (105610005136).

Almost surely, 2^211220010271 is an apocalyptic number.

211220010271 is a deficient number, since it is larger than the sum of its proper divisors (1).

211220010271 is an equidigital number, since it uses as much as digits as its factorization.

211220010271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 19.

Adding to 211220010271 its reverse (172010022112), we get a palindrome (383230032383).

The spelling of 211220010271 in words is "two hundred eleven billion, two hundred twenty million, ten thousand, two hundred seventy-one".