11222100122111 has 4 divisors (see below), whose sum is σ = 11229677503824. Its totient is φ = 11214522740400.

The previous prime is 11222100122029. The next prime is 11222100122117. The reversal of 11222100122111 is 11122100122211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222100122111 is a prime.

It is a super-2 number, since 2×11222100122111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11222100122111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222100122117) 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, 3788688635 + ... + 3788691596.

It is an arithmetic number, because the mean of its divisors is an integer number (2807419375956).

Almost surely, 2^{11222100122111} is an apocalyptic number.

11222100122111 is a deficient number, since it is larger than the sum of its proper divisors (7577381713).

11222100122111 is an equidigital number, since it uses as much as digits as its factorization.

11222100122111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7577381712.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 11222100122111 its reverse (11122100122211), we get a palindrome (22344200244322).

The spelling of 11222100122111 in words is "eleven trillion, two hundred twenty-two billion, one hundred million, one hundred twenty-two thousand, one hundred eleven".