212103224 has 8 divisors (see below), whose sum is σ = 397693560. Its totient is φ = 106051608.

The previous prime is 212103223. The next prime is 212103233. The reversal of 212103224 is 422301212.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212103223) by changing a digit.

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 as a sum of consecutive naturals, namely, 13256444 + ... + 13256459.

It is an arithmetic number, because the mean of its divisors is an integer number (49711695).

Almost surely, 2^212103224 is an apocalyptic number.

It is an amenable number.

212103224 is a deficient number, since it is larger than the sum of its proper divisors (185590336).

212103224 is a wasteful number, since it uses less digits than its factorization.

212103224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26512909 (or 26512905 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 212103224 is about 14563.7640738924. The cubic root of 212103224 is about 596.3699563364.

Adding to 212103224 its reverse (422301212), we get a palindrome (634404436).

The spelling of 212103224 in words is "two hundred twelve million, one hundred three thousand, two hundred twenty-four".