11222111222122 has 4 divisors (see below), whose sum is σ = 16833166833186. Its totient is φ = 5611055611060.

The previous prime is 11222111222089. The next prime is 11222111222159. The reversal of 11222111222122 is 22122211122211.

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., 11110415566441 + 111695655681 = 3333229^2 + 334209^2 .

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 11222111222093 and 11222111222102.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2805527805529 + ... + 2805527805532.

Almost surely, 2^{11222111222122} is an apocalyptic number.

11222111222122 is a deficient number, since it is larger than the sum of its proper divisors (5611055611064).

11222111222122 is an equidigital number, since it uses as much as digits as its factorization.

11222111222122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5611055611063.

The product of its digits is 256, while the sum is 22.

Adding to 11222111222122 its reverse (22122211122211), we get a palindrome (33344322344333).

The spelling of 11222111222122 in words is "eleven trillion, two hundred twenty-two billion, one hundred eleven million, two hundred twenty-two thousand, one hundred twenty-two".