111010112222122 has 4 divisors (see below), whose sum is σ = 166515168333186. Its totient is φ = 55505056111060.

The previous prime is 111010112222089. The next prime is 111010112222147. The reversal of 111010112222122 is 221222211010111.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 72689419104481 + 38320693117641 = 8525809^2 + 6190371^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 111010112222122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27752528055529 + ... + 27752528055532.

Almost surely, 2^{111010112222122} is an apocalyptic number.

111010112222122 is a deficient number, since it is larger than the sum of its proper divisors (55505056111064).

111010112222122 is an equidigital number, since it uses as much as digits as its factorization.

111010112222122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55505056111063.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 111010112222122 its reverse (221222211010111), we get a palindrome (332232323232233).

The spelling of 111010112222122 in words is "one hundred eleven trillion, ten billion, one hundred twelve million, two hundred twenty-two thousand, one hundred twenty-two".