11222120002122 has 24 divisors (see below), whose sum is σ = 24460189711776. Its totient is φ = 3718307225256.

The previous prime is 11222120002109. The next prime is 11222120002123. The reversal of 11222120002122 is 22120002122211.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11222120002095 and 11222120002104.

It is not an unprimeable number, because it can be changed into a prime (11222120002123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1866617088 + ... + 1866623099.

It is an arithmetic number, because the mean of its divisors is an integer number (1019174571324).

Almost surely, 2^{11222120002122} is an apocalyptic number.

11222120002122 is an abundant number, since it is smaller than the sum of its proper divisors (13238069709654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11222120002122 is a wasteful number, since it uses less digits than its factorization.

11222120002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3733240362 (or 3733240359 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11222120002122 its reverse (22120002122211), we get a palindrome (33342122124333).

The spelling of 11222120002122 in words is "eleven trillion, two hundred twenty-two billion, one hundred twenty million, two thousand, one hundred twenty-two".