211122020011 has 8 divisors (see below), whose sum is σ = 241288935680. Its totient is φ = 180956761128.

The previous prime is 211122019993. The next prime is 211122020027. The reversal of 211122020011 is 110020221112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 211122020011 - 2²⁷ = 210987802283 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 211122019973 and 211122020000.

It is not an unprimeable number, because it can be changed into a prime (211122020051) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127941 + ... + 662278.

It is an arithmetic number, because the mean of its divisors is an integer number (30161116960).

Almost surely, 2^211122020011 is an apocalyptic number.

211122020011 is a deficient number, since it is larger than the sum of its proper divisors (30166915669).

211122020011 is an equidigital number, since it uses as much as digits as its factorization.

211122020011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 828393.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 211122020011 its reverse (110020221112), we get a palindrome (321142241123).

The spelling of 211122020011 in words is "two hundred eleven billion, one hundred twenty-two million, twenty thousand, eleven".