212101244 has 24 divisors (see below), whose sum is σ = 386551200. Its totient is φ = 101707200.

The previous prime is 212101229. The next prime is 212101249. The reversal of 212101244 is 442101212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212101249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11462 + ... + 23570.

It is an arithmetic number, because the mean of its divisors is an integer number (16106300).

Almost surely, 2^212101244 is an apocalyptic number.

It is an amenable number.

212101244 is a deficient number, since it is larger than the sum of its proper divisors (174449956).

212101244 is a wasteful number, since it uses less digits than its factorization.

212101244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12293 (or 12291 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

The square root of 212101244 is about 14563.6960968018. The cubic root of 212101244 is about 596.3681006107.

Adding to 212101244 its reverse (442101212), we get a palindrome (654202456).

The spelling of 212101244 in words is "two hundred twelve million, one hundred one thousand, two hundred forty-four".