11100122212222 has 32 divisors (see below), whose sum is σ = 17901762670080. Its totient is φ = 5145405822720.

The previous prime is 11100122212217. The next prime is 11100122212261. The reversal of 11100122212222 is 22221222100111.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 11100122212222.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13332078 + ... + 14140174.

It is an arithmetic number, because the mean of its divisors is an integer number (559430083440).

Almost surely, 2^{11100122212222} is an apocalyptic number.

11100122212222 is a deficient number, since it is larger than the sum of its proper divisors (6801640457858).

11100122212222 is a wasteful number, since it uses less digits than its factorization.

11100122212222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815856.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 11100122212222 its reverse (22221222100111), we get a palindrome (33321344312333).

The spelling of 11100122212222 in words is "eleven trillion, one hundred billion, one hundred twenty-two million, two hundred twelve thousand, two hundred twenty-two".