12122201122222 has 16 divisors (see below), whose sum is σ = 18196257717792. Its totient is φ = 6056783362080.

The previous prime is 12122201122219. The next prime is 12122201122231. The reversal of 12122201122222 is 22222110222121.

It is a junction number, because it is equal to n+sod(n) for n = 12122201122193 and 12122201122202.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16155463 + ... + 16889149.

It is an arithmetic number, because the mean of its divisors is an integer number (1137266107362).

Almost surely, 2^{12122201122222} is an apocalyptic number.

12122201122222 is a deficient number, since it is larger than the sum of its proper divisors (6074056595570).

12122201122222 is a wasteful number, since it uses less digits than its factorization.

12122201122222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 739563.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 12122201122222 its reverse (22222110222121), we get a palindrome (34344311344343).

The spelling of 12122201122222 in words is "twelve trillion, one hundred twenty-two billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-two".