11112120122211 has 6 divisors (see below), whose sum is σ = 16050840176540. Its totient is φ = 7408080081468.

The previous prime is 11112120122149. The next prime is 11112120122251. The reversal of 11112120122211 is 11222102121111.

It is a happy number.

11112120122211 is a `hidden beast` number, since 111 + 121 + 201 + 22 + 211 = 666.

It is not a de Polignac number, because 11112120122211 - 2¹⁹ = 11112119597923 is a prime.

It is a super-2 number, since 2×11112120122211² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112120122251) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 617340006781 + ... + 617340006798.

Almost surely, 2^{11112120122211} is an apocalyptic number.

11112120122211 is a deficient number, since it is larger than the sum of its proper divisors (4938720054329).

11112120122211 is a wasteful number, since it uses less digits than its factorization.

11112120122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234680013585 (or 1234680013582 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 11112120122211 its reverse (11222102121111), we get a palindrome (22334222243322).

The spelling of 11112120122211 in words is "eleven trillion, one hundred twelve billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".