212043441 has 16 divisors (see below), whose sum is σ = 292382208. Its totient is φ = 136550400.

The previous prime is 212043427. The next prime is 212043451. The reversal of 212043441 is 144340212.

It is not a de Polignac number, because 212043441 - 2⁷ = 212043313 is a prime.

It is a super-2 number, since 2×212043441² = 89924841742240962, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212043451) 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 15 ways as a sum of consecutive naturals, for example, 57835 + ... + 61391.

It is an arithmetic number, because the mean of its divisors is an integer number (18273888).

Almost surely, 2^212043441 is an apocalyptic number.

It is an amenable number.

212043441 is a deficient number, since it is larger than the sum of its proper divisors (80338767).

212043441 is a wasteful number, since it uses less digits than its factorization.

212043441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4232.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 212043441 is about 14561.7114722137. The cubic root of 212043441 is about 596.3139205147.

Adding to 212043441 its reverse (144340212), we get a palindrome (356383653).

The spelling of 212043441 in words is "two hundred twelve million, forty-three thousand, four hundred forty-one".