12122011112122 has 8 divisors (see below), whose sum is σ = 18190666240596. Its totient is φ = 6058455698592.

The previous prime is 12122011112087. The next prime is 12122011112149. The reversal of 12122011112122 is 22121111022121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10967548969441 + 1154462142681 = 3311729^2 + 1074459^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 12122011112122.

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, 1274922793 + ... + 1274932300.

Almost surely, 2^{12122011112122} is an apocalyptic number.

12122011112122 is a deficient number, since it is larger than the sum of its proper divisors (6068655128474).

12122011112122 is a wasteful number, since it uses less digits than its factorization.

12122011112122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2549857472.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12122011112122 its reverse (22121111022121), we get a palindrome (34243122134243).

Subtracting 12122011112122 from its reverse (22121111022121), we obtain a palindrome (9999099909999).

The spelling of 12122011112122 in words is "twelve trillion, one hundred twenty-two billion, eleven million, one hundred twelve thousand, one hundred twenty-two".