12221112122 has 8 divisors (see below), whose sum is σ = 18509645856. Its totient is φ = 6051230172.

The previous prime is 12221112103. The next prime is 12221112131. The reversal of 12221112122 is 22121112221.

It is a sphenic number, since it is the product of 3 distinct primes.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12221112122.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29662688 + ... + 29663099.

It is an arithmetic number, because the mean of its divisors is an integer number (2313705732).

Almost surely, 2^12221112122 is an apocalyptic number.

12221112122 is a deficient number, since it is larger than the sum of its proper divisors (6288533734).

12221112122 is a wasteful number, since it uses less digits than its factorization.

12221112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59325892.

The product of its digits is 64, while the sum is 17.

Adding to 12221112122 its reverse (22121112221), we get a palindrome (34342224343).

Subtracting 12221112122 from its reverse (22121112221), we obtain a palindrome (9900000099).

The spelling of 12221112122 in words is "twelve billion, two hundred twenty-one million, one hundred twelve thousand, one hundred twenty-two".