112221212212 has 6 divisors (see below), whose sum is σ = 196387121378. Its totient is φ = 56110606104.

The previous prime is 112221212203. The next prime is 112221212221. The reversal of 112221212212 is 212212122211.

It is an interprime number because it is at equal distance from previous prime (112221212203) and next prime (112221212221).

It can be written as a sum of positive squares in only one way, i.e., 92389249936 + 19831962276 = 303956^2 + 140826^2 .

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 112221212212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14027651523 + ... + 14027651530.

Almost surely, 2^112221212212 is an apocalyptic number.

It is an amenable number.

112221212212 is a deficient number, since it is larger than the sum of its proper divisors (84165909166).

112221212212 is a wasteful number, since it uses less digits than its factorization.

112221212212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28055303057 (or 28055303055 counting only the distinct ones).

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

Adding to 112221212212 its reverse (212212122211), we get a palindrome (324433334423).

Subtracting 112221212212 from its reverse (212212122211), we obtain a palindrome (99990909999).

The spelling of 112221212212 in words is "one hundred twelve billion, two hundred twenty-one million, two hundred twelve thousand, two hundred twelve".