212303212 has 54 divisors (see below), whose sum is σ = 422052092. Its totient is φ = 93324000.

The previous prime is 212303209. The next prime is 212303219.

212303212 is nontrivially palindromic in base 10.

It is an alternating number because its digits alternate between even and odd.

It is not an unprimeable number, because it can be changed into a prime (212303219) 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 in 17 ways as a sum of consecutive naturals, for example, 2101962 + ... + 2102062.

Almost surely, 2^212303212 is an apocalyptic number.

212303212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212303212 is a deficient number, since it is larger than the sum of its proper divisors (209748880).

212303212 is a wasteful number, since it uses less digits than its factorization.

212303212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212303212 is about 14570.6284009990. The cubic root of 212303212 is about 596.5573326641.

It can be divided in two parts, 21230 and 3212, that added together give a palindrome (24442).

The spelling of 212303212 in words is "two hundred twelve million, three hundred three thousand, two hundred twelve".