122212221112 has 16 divisors (see below), whose sum is σ = 229152105000. Its totient is φ = 61104993120.

The previous prime is 122212221107. The next prime is 122212221127. The reversal of 122212221112 is 211122212221.

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 122212221112.

It is a congruent number.

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, 494514 + ... + 699262.

Almost surely, 2^122212221112 is an apocalyptic number.

It is an amenable number.

122212221112 is a deficient number, since it is larger than the sum of its proper divisors (106939883888).

122212221112 is a wasteful number, since it uses less digits than its factorization.

122212221112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 279366 (or 279362 counting only the distinct ones).

The product of its digits is 128, while the sum is 19.

Adding to 122212221112 its reverse (211122212221), we get a palindrome (333334433333).

The spelling of 122212221112 in words is "one hundred twenty-two billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twelve".