12221111122 has 16 divisors (see below), whose sum is σ = 20004446592. Its totient is φ = 5553310320.

The previous prime is 12221111107. The next prime is 12221111173. The reversal of 12221111122 is 22111112221.

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 = 12221111096 and 12221111105.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13818 + ... + 156949.

It is an arithmetic number, because the mean of its divisors is an integer number (1250277912).

Almost surely, 2^12221111122 is an apocalyptic number.

12221111122 is a deficient number, since it is larger than the sum of its proper divisors (7783335470).

12221111122 is a wasteful number, since it uses less digits than its factorization.

12221111122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174033.

The product of its digits is 32, while the sum is 16.

Adding to 12221111122 its reverse (22111112221), we get a palindrome (34332223343).

The spelling of 12221111122 in words is "twelve billion, two hundred twenty-one million, one hundred eleven thousand, one hundred twenty-two".