212204012 has 24 divisors (see below), whose sum is σ = 375144000. Its totient is φ = 105025536.

The previous prime is 212203973. The next prime is 212204039. The reversal of 212204012 is 210402212.

It is a super-2 number, since 2×212204012² = 90061085417792288, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 275564 + ... + 276332.

It is an arithmetic number, because the mean of its divisors is an integer number (15631000).

Almost surely, 2^212204012 is an apocalyptic number.

It is an amenable number.

212204012 is a deficient number, since it is larger than the sum of its proper divisors (162939988).

212204012 is a wasteful number, since it uses less digits than its factorization.

212204012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385 (or 1383 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 212204012 is about 14567.2238947577. The cubic root of 212204012 is about 596.4644031438.

Adding to 212204012 its reverse (210402212), we get a palindrome (422606224).

The spelling of 212204012 in words is "two hundred twelve million, two hundred four thousand, twelve".