11211111011122 has 16 divisors (see below), whose sum is σ = 18346009699872. Its totient is φ = 5095805295520.

The previous prime is 11211111011081. The next prime is 11211111011129. The reversal of 11211111011122 is 22111011111211.

It is a junction number, because it is equal to n+sod(n) for n = 11211111011096 and 11211111011105.

It is not an unprimeable number, because it can be changed into a prime (11211111011129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6967843 + ... + 8424550.

It is an arithmetic number, because the mean of its divisors is an integer number (1146625606242).

Almost surely, 2^{11211111011122} is an apocalyptic number.

11211111011122 is a deficient number, since it is larger than the sum of its proper divisors (7134898688750).

11211111011122 is a wasteful number, since it uses less digits than its factorization.

11211111011122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15425513.

The product of its (nonzero) digits is 8, while the sum is 16.

Adding to 11211111011122 its reverse (22111011111211), we get a palindrome (33322122122333).

The spelling of 11211111011122 in words is "eleven trillion, two hundred eleven billion, one hundred eleven million, eleven thousand, one hundred twenty-two".