212222044 has 12 divisors (see below), whose sum is σ = 373849168. Its totient is φ = 105408000.

The previous prime is 212222011. The next prime is 212222051. The reversal of 212222044 is 440222212.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 175077 + ... + 176284.

Almost surely, 2^212222044 is an apocalyptic number.

It is an amenable number.

212222044 is a deficient number, since it is larger than the sum of its proper divisors (161627124).

212222044 is a wasteful number, since it uses less digits than its factorization.

212222044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351516 (or 351514 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 212222044 is about 14567.8428053024. The cubic root of 212222044 is about 596.4812974858.

Adding to 212222044 its reverse (440222212), we get a palindrome (652444256).

The spelling of 212222044 in words is "two hundred twelve million, two hundred twenty-two thousand, forty-four".