101122021211 has 4 divisors (see below), whose sum is σ = 101126467800. Its totient is φ = 101117574624.

The previous prime is 101122021183. The next prime is 101122021223. The reversal of 101122021211 is 112120221101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112120221101 = 7 ⋅16017174443.

It is a cyclic number.

It is not a de Polignac number, because 101122021211 - 2¹⁰ = 101122020187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101122021271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2189006 + ... + 2234723.

It is an arithmetic number, because the mean of its divisors is an integer number (25281616950).

Almost surely, 2^101122021211 is an apocalyptic number.

101122021211 is a deficient number, since it is larger than the sum of its proper divisors (4446589).

101122021211 is an equidigital number, since it uses as much as digits as its factorization.

101122021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4446588.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 101122021211 its reverse (112120221101), we get a palindrome (213242242312).

The spelling of 101122021211 in words is "one hundred one billion, one hundred twenty-two million, twenty-one thousand, two hundred eleven".