12111001122 has 32 divisors (see below), whose sum is σ = 26857191744. Its totient is φ = 3609835200.

The previous prime is 12111001103. The next prime is 12111001159. The reversal of 12111001122 is 22110011121.

It is a junction number, because it is equal to n+sod(n) for n = 12111001098 and 12111001107.

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, 1500073 + ... + 1508124.

It is an arithmetic number, because the mean of its divisors is an integer number (839287242).

Almost surely, 2^12111001122 is an apocalyptic number.

12111001122 is an abundant number, since it is smaller than the sum of its proper divisors (14746190622).

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

12111001122 is a wasteful number, since it uses less digits than its factorization.

12111001122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3008274.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12111001122 its reverse (22110011121), we get a palindrome (34221012243).

Subtracting 12111001122 from its reverse (22110011121), we obtain a palindrome (9999009999).

The spelling of 12111001122 in words is "twelve billion, one hundred eleven million, one thousand, one hundred twenty-two".