212144441 has 8 divisors (see below), whose sum is σ = 214465440. Its totient is φ = 209835072.

The previous prime is 212144437. The next prime is 212144461. The reversal of 212144441 is 144441212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212144441 - 2² = 212144437 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212144461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36641 + ... + 42033.

It is an arithmetic number, because the mean of its divisors is an integer number (26808180).

Almost surely, 2^212144441 is an apocalyptic number.

It is an amenable number.

212144441 is a deficient number, since it is larger than the sum of its proper divisors (2320999).

212144441 is a wasteful number, since it uses less digits than its factorization.

212144441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5815.

The product of its digits is 1024, while the sum is 23.

The square root of 212144441 is about 14565.1790582883. The cubic root of 212144441 is about 596.4085837367.

Adding to 212144441 its reverse (144441212), we get a palindrome (356585653).

The spelling of 212144441 in words is "two hundred twelve million, one hundred forty-four thousand, four hundred forty-one".