12122110112222 has 16 divisors (see below), whose sum is σ = 19871792735472. Its totient is φ = 5500157675520.

The previous prime is 12122110111939. The next prime is 12122110112237. The reversal of 12122110112222 is 22221101122121.

It is a junction number, because it is equal to n+sod(n) for n = 12122110112194 and 12122110112203.

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, 494606243 + ... + 494630750.

It is an arithmetic number, because the mean of its divisors is an integer number (1241987045967).

Almost surely, 2^{12122110112222} is an apocalyptic number.

12122110112222 is a deficient number, since it is larger than the sum of its proper divisors (7749682623250).

12122110112222 is a wasteful number, since it uses less digits than its factorization.

12122110112222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 989237563.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 12122110112222 its reverse (22221101122121), we get a palindrome (34343211234343).

The spelling of 12122110112222 in words is "twelve trillion, one hundred twenty-two billion, one hundred ten million, one hundred twelve thousand, two hundred twenty-two".