212244433142 has 16 divisors (see below), whose sum is σ = 363857660160. Its totient is φ = 90959384808.

The previous prime is 212244433129. The next prime is 212244433151. The reversal of 212244433142 is 241334442212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 212244433099 and 212244433108.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 370103 + ... + 749309.

It is an arithmetic number, because the mean of its divisors is an integer number (22741103760).

Almost surely, 2^212244433142 is an apocalyptic number.

212244433142 is a deficient number, since it is larger than the sum of its proper divisors (151613227018).

212244433142 is a wasteful number, since it uses less digits than its factorization.

212244433142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419195.

The product of its digits is 36864, while the sum is 32.

Adding to 212244433142 its reverse (241334442212), we get a palindrome (453578875354).

The spelling of 212244433142 in words is "two hundred twelve billion, two hundred forty-four million, four hundred thirty-three thousand, one hundred forty-two".