1222112120222 has 24 divisors (see below), whose sum is σ = 2244695734440. Its totient is φ = 496195897680.

The previous prime is 1222112120183. The next prime is 1222112120227. The reversal of 1222112120222 is 2220212112221.

It is a junction number, because it is equal to n+sod(n) for n = 1222112120194 and 1222112120203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1222112120227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 328170029 + ... + 328173752.

It is an arithmetic number, because the mean of its divisors is an integer number (93528988935).

Almost surely, 2^{1222112120222} is an apocalyptic number.

1222112120222 is a deficient number, since it is larger than the sum of its proper divisors (1022583614218).

1222112120222 is a wasteful number, since it uses less digits than its factorization.

1222112120222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656343816 (or 656343809 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 1222112120222 its reverse (2220212112221), we get a palindrome (3442324232443).

The spelling of 1222112120222 in words is "one trillion, two hundred twenty-two billion, one hundred twelve million, one hundred twenty thousand, two hundred twenty-two".