1222111112122 has 8 divisors (see below), whose sum is σ = 1875798451296. Its totient is φ = 596844961692.

The previous prime is 1222111112071. The next prime is 1222111112147. The reversal of 1222111112122 is 2212111112221.

It is a happy number.

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

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 1222111112122.

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, 7105297078 + ... + 7105297249.

It is an arithmetic number, because the mean of its divisors is an integer number (234474806412).

Almost surely, 2^{1222111112122} is an apocalyptic number.

1222111112122 is a deficient number, since it is larger than the sum of its proper divisors (653687339174).

1222111112122 is a wasteful number, since it uses less digits than its factorization.

1222111112122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14210594372.

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

Adding to 1222111112122 its reverse (2212111112221), we get a palindrome (3434222224343).

Subtracting 1222111112122 from its reverse (2212111112221), we obtain a palindrome (990000000099).

The spelling of 1222111112122 in words is "one trillion, two hundred twenty-two billion, one hundred eleven million, one hundred twelve thousand, one hundred twenty-two".