212211424144 has 20 divisors (see below), whose sum is σ = 411352642480. Its totient is φ = 106055903520.

The previous prime is 212211424129. The next prime is 212211424151. The reversal of 212211424144 is 441424112212.

It is a super-2 number, since 2×212211424144² (a number of 23 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3077874 + ... + 3146065.

It is an arithmetic number, because the mean of its divisors is an integer number (20567632124).

Almost surely, 2^212211424144 is an apocalyptic number.

It is an amenable number.

212211424144 is a deficient number, since it is larger than the sum of its proper divisors (199141218336).

212211424144 is a wasteful number, since it uses less digits than its factorization.

212211424144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6226078 (or 6226072 counting only the distinct ones).

The product of its digits is 4096, while the sum is 28.

Adding to 212211424144 its reverse (441424112212), we get a palindrome (653635536356).

The spelling of 212211424144 in words is "two hundred twelve billion, two hundred eleven million, four hundred twenty-four thousand, one hundred forty-four".