212144444 has 6 divisors (see below), whose sum is σ = 371252784. Its totient is φ = 106072220.

The previous prime is 212144437. The next prime is 212144461. The reversal of 212144444 is 444441212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26518052 + ... + 26518059.

It is an arithmetic number, because the mean of its divisors is an integer number (61875464).

Almost surely, 2^212144444 is an apocalyptic number.

It is an amenable number.

212144444 is a deficient number, since it is larger than the sum of its proper divisors (159108340).

212144444 is a wasteful number, since it uses less digits than its factorization.

212144444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53036115 (or 53036113 counting only the distinct ones).

The product of its digits is 4096, while the sum is 26.

The square root of 212144444 is about 14565.1791612736. The cubic root of 212144444 is about 596.4085865481.

Adding to 212144444 its reverse (444441212), we get a palindrome (656585656).

The spelling of 212144444 in words is "two hundred twelve million, one hundred forty-four thousand, four hundred forty-four".