101211271 has 16 divisors (see below), whose sum is σ = 122233600. Its totient is φ = 81865728.

The previous prime is 101211269. The next prime is 101211277. The reversal of 101211271 is 172112101.

It is not a de Polignac number, because 101211271 - 2¹ = 101211269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36295 + ... + 38983.

It is an arithmetic number, because the mean of its divisors is an integer number (7639600).

Almost surely, 2^101211271 is an apocalyptic number.

101211271 is a deficient number, since it is larger than the sum of its proper divisors (21022329).

101211271 is a wasteful number, since it uses less digits than its factorization.

101211271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2998.

The product of its (nonzero) digits is 28, while the sum is 16.

The square root of 101211271 is about 10060.3812552010. The cubic root of 101211271 is about 466.0254411500.

Adding to 101211271 its reverse (172112101), we get a palindrome (273323372).

The spelling of 101211271 in words is "one hundred one million, two hundred eleven thousand, two hundred seventy-one".