211110011121 has 16 divisors (see below), whose sum is σ = 287547744960. Its totient is φ = 137720157120.

The previous prime is 211110011117. The next prime is 211110011143. The reversal of 211110011121 is 121110011112.

It is not a de Polignac number, because 211110011121 - 2² = 211110011117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211110011097 and 211110011106.

It is not an unprimeable number, because it can be changed into a prime (211110011171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1691370 + ... + 1811891.

It is an arithmetic number, because the mean of its divisors is an integer number (17971734060).

Almost surely, 2^211110011121 is an apocalyptic number.

It is an amenable number.

211110011121 is a deficient number, since it is larger than the sum of its proper divisors (76437733839).

211110011121 is a wasteful number, since it uses less digits than its factorization.

211110011121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3503696.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 211110011121 its reverse (121110011112), we get a palindrome (332220022233).

Subtracting from 211110011121 its reverse (121110011112), we obtain a palindrome (90000000009).

The spelling of 211110011121 in words is "two hundred eleven billion, one hundred ten million, eleven thousand, one hundred twenty-one".