212223112 has 8 divisors (see below), whose sum is σ = 397918350. Its totient is φ = 106111552.

The previous prime is 212223097. The next prime is 212223133. The reversal of 212223112 is 211322212.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 212168356 + 54756 = 14566^2 + 234^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13263937 + ... + 13263952.

Almost surely, 2^212223112 is an apocalyptic number.

It is an amenable number.

212223112 is a deficient number, since it is larger than the sum of its proper divisors (185695238).

212223112 is a wasteful number, since it uses less digits than its factorization.

212223112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26527895 (or 26527891 counting only the distinct ones).

The product of its digits is 96, while the sum is 16.

The square root of 212223112 is about 14567.8794613355. The cubic root of 212223112 is about 596.4822980746.

Adding to 212223112 its reverse (211322212), we get a palindrome (423545324).

The spelling of 212223112 in words is "two hundred twelve million, two hundred twenty-three thousand, one hundred twelve".