211450101271 has 2 divisors, whose sum is σ = 211450101272. Its totient is φ = 211450101270.

The previous prime is 211450101251. The next prime is 211450101307. The reversal of 211450101271 is 172101054112.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211450101271 - 2⁹ = 211450100759 is a prime.

It is a super-2 number, since 2×211450101271² (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 (211450101221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105725050635 + 105725050636.

It is an arithmetic number, because the mean of its divisors is an integer number (105725050636).

Almost surely, 2^211450101271 is an apocalyptic number.

211450101271 is a deficient number, since it is larger than the sum of its proper divisors (1).

211450101271 is an equidigital number, since it uses as much as digits as its factorization.

211450101271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 560, while the sum is 25.

Adding to 211450101271 its reverse (172101054112), we get a palindrome (383551155383).

The spelling of 211450101271 in words is "two hundred eleven billion, four hundred fifty million, one hundred one thousand, two hundred seventy-one".