122220222112 has 12 divisors (see below), whose sum is σ = 240621062346. Its totient is φ = 61110111040.

The previous prime is 122220222083. The next prime is 122220222119. The reversal of 122220222112 is 211222022221.

It can be written as a sum of positive squares in only one way, i.e., 67914444816 + 54305777296 = 260604^2 + 233036^2 .

It is a super-2 number, since 2×122220222112² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 122220222112.

It is not an unprimeable number, because it can be changed into a prime (122220222119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1909690939 + ... + 1909691002.

Almost surely, 2^122220222112 is an apocalyptic number.

It is an amenable number.

122220222112 is a deficient number, since it is larger than the sum of its proper divisors (118400840234).

122220222112 is an equidigital number, since it uses as much as digits as its factorization.

122220222112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3819381951 (or 3819381943 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 122220222112 its reverse (211222022221), we get a palindrome (333442244333).

The spelling of 122220222112 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, one hundred twelve".