11101222122 has 64 divisors (see below), whose sum is σ = 23705581824. Its totient is φ = 3453649920.

The previous prime is 11101222117. The next prime is 11101222211. The reversal of 11101222122 is 22122210111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11134128 + ... + 11135124.

It is an arithmetic number, because the mean of its divisors is an integer number (370399716).

Almost surely, 2^11101222122 is an apocalyptic number.

11101222122 is an abundant number, since it is smaller than the sum of its proper divisors (12604359702).

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

11101222122 is a wasteful number, since it uses less digits than its factorization.

11101222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823.

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 11101222122 its reverse (22122210111), we get a palindrome (33223432233).

The spelling of 11101222122 in words is "eleven billion, one hundred one million, two hundred twenty-two thousand, one hundred twenty-two".