1011122112211 has 4 divisors (see below), whose sum is σ = 1011154940800. Its totient is φ = 1011089283624.

The previous prime is 1011122112181. The next prime is 1011122112233. The reversal of 1011122112211 is 1122112211101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1011122112211 - 2²⁵ = 1011088557779 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1011122119211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16368051 + ... + 16429708.

It is an arithmetic number, because the mean of its divisors is an integer number (252788735200).

Almost surely, 2^{1011122112211} is an apocalyptic number.

1011122112211 is a deficient number, since it is larger than the sum of its proper divisors (32828589).

1011122112211 is an equidigital number, since it uses as much as digits as its factorization.

1011122112211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32828588.

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

Adding to 1011122112211 its reverse (1122112211101), we get a palindrome (2133234323312).

It can be divided in two parts, 101 and 1122112211, that multiplied together give a palindrome (113333333311).

The spelling of 1011122112211 in words is "one trillion, eleven billion, one hundred twenty-two million, one hundred twelve thousand, two hundred eleven".