212343212 has 24 divisors (see below), whose sum is σ = 376173504. Its totient is φ = 104871312.

The previous prime is 212343169. The next prime is 212343217.

212343212 is nontrivially palindromic in base 10.

212343212 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 (212343217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233663 + ... + 234569.

It is an arithmetic number, because the mean of its divisors is an integer number (15673896).

Almost surely, 2^212343212 is an apocalyptic number.

It is an amenable number.

212343212 is a deficient number, since it is larger than the sum of its proper divisors (163830292).

212343212 is a wasteful number, since it uses less digits than its factorization.

212343212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1565 (or 1563 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 212343212 is about 14572.0009607466. Note that the first 3 decimals coincide. The cubic root of 212343212 is about 596.5947960553.

The spelling of 212343212 in words is "two hundred twelve million, three hundred forty-three thousand, two hundred twelve".