212503112 has 16 divisors (see below), whose sum is σ = 400468860. Its totient is φ = 105711424.

The previous prime is 212503079. The next prime is 212503183. The reversal of 212503112 is 211305212.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 200902276 + 11600836 = 14174^2 + 3406^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65843 + ... + 68994.

Almost surely, 2^212503112 is an apocalyptic number.

It is an amenable number.

212503112 is a deficient number, since it is larger than the sum of its proper divisors (187965748).

212503112 is a wasteful number, since it uses less digits than its factorization.

212503112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135040 (or 135036 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 212503112 is about 14577.4864774419. The cubic root of 212503112 is about 596.7445089845.

Adding to 212503112 its reverse (211305212), we get a palindrome (423808324).

The spelling of 212503112 in words is "two hundred twelve million, five hundred three thousand, one hundred twelve".