11222222122122 has 64 divisors (see below), whose sum is σ = 26162979004800. Its totient is φ = 3171270113280.

The previous prime is 11222222122091. The next prime is 11222222122147. The reversal of 11222222122122 is 22122122222211.

It is a happy number.

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 = 11222222122092 and 11222222122101.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 45758347 + ... + 46002942.

It is an arithmetic number, because the mean of its divisors is an integer number (408796546950).

Almost surely, 2^{11222222122122} is an apocalyptic number.

11222222122122 is an abundant number, since it is smaller than the sum of its proper divisors (14940756882678).

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

11222222122122 is a wasteful number, since it uses less digits than its factorization.

11222222122122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91761431.

The product of its digits is 1024, while the sum is 24.

Adding to 11222222122122 its reverse (22122122222211), we get a palindrome (33344344344333).

The spelling of 11222222122122 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-two million, one hundred twenty-two thousand, one hundred twenty-two".