212402212 has 48 divisors (see below), whose sum is σ = 416747520. Its totient is φ = 93895200.

The previous prime is 212402207. The next prime is 212402213. The reversal of 212402212 is 212204212.

It is a super-2 number, since 2×212402212² = 90229399324985888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212402213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 560239 + ... + 560617.

It is an arithmetic number, because the mean of its divisors is an integer number (8682240).

Almost surely, 2^212402212 is an apocalyptic number.

212402212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

212402212 is a deficient number, since it is larger than the sum of its proper divisors (204345308).

212402212 is a wasteful number, since it uses less digits than its factorization.

212402212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 712 (or 710 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 212402212 is about 14574.0252504241. The cubic root of 212402212 is about 596.6500459706.

Adding to 212402212 its reverse (212204212), we get a palindrome (424606424).

The spelling of 212402212 in words is "two hundred twelve million, four hundred two thousand, two hundred twelve".