212214044 has 12 divisors (see below), whose sum is σ = 424428144. Its totient is φ = 90948864.

The previous prime is 212214019. The next prime is 212214047. The reversal of 212214044 is 440412212.

212214044 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212214047) 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 in 3 ways as a sum of consecutive naturals, for example, 3789509 + ... + 3789564.

It is an arithmetic number, because the mean of its divisors is an integer number (35369012).

Almost surely, 2^212214044 is an apocalyptic number.

It is an amenable number.

212214044 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212214044 is a wasteful number, since it uses less digits than its factorization.

212214044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7579084 (or 7579082 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 212214044 is about 14567.5682253422. The cubic root of 212214044 is about 596.4738023324.

Adding to 212214044 its reverse (440412212), we get a palindrome (652626256).

The spelling of 212214044 in words is "two hundred twelve million, two hundred fourteen thousand, forty-four".