212213044 has 24 divisors (see below), whose sum is σ = 378264320. Its totient is φ = 104151744.

The previous prime is 212212999. The next prime is 212213051. The reversal of 212213044 is 440312212.

It is a congruent number.

It is an unprimeable number.

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, 63487 + ... + 66745.

Almost surely, 2^212213044 is an apocalyptic number.

It is an amenable number.

212213044 is a deficient number, since it is larger than the sum of its proper divisors (166051276).

212213044 is a wasteful number, since it uses less digits than its factorization.

212213044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3559 (or 3557 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 212213044 is about 14567.5339024833. The cubic root of 212213044 is about 596.4728654250.

Adding to 212213044 its reverse (440312212), we get a palindrome (652525256).

The spelling of 212213044 in words is "two hundred twelve million, two hundred thirteen thousand, forty-four".