12222420122 has 16 divisors (see below), whose sum is σ = 20030605344. Its totient is φ = 5547234000.

The previous prime is 12222420109. The next prime is 12222420163. The reversal of 12222420122 is 22102422221.

It is a junction number, because it is equal to n+sod(n) for n = 12222420094 and 12222420103.

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, 405704 + ... + 434787.

It is an arithmetic number, because the mean of its divisors is an integer number (1251912834).

Almost surely, 2^12222420122 is an apocalyptic number.

12222420122 is a deficient number, since it is larger than the sum of its proper divisors (7808185222).

12222420122 is a wasteful number, since it uses less digits than its factorization.

12222420122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 841165.

The product of its (nonzero) digits is 512, while the sum is 20.

Adding to 12222420122 its reverse (22102422221), we get a palindrome (34324842343).

The spelling of 12222420122 in words is "twelve billion, two hundred twenty-two million, four hundred twenty thousand, one hundred twenty-two".