212134240144 has 40 divisors (see below), whose sum is σ = 414930817728. Its totient is φ = 105055701120.

The previous prime is 212134240141. The next prime is 212134240187. The reversal of 212134240144 is 441042431212.

212134240144 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×212134240144² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212134240141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13244589 + ... + 13260595.

Almost surely, 2^212134240144 is an apocalyptic number.

It is an amenable number.

212134240144 is a deficient number, since it is larger than the sum of its proper divisors (202796577584).

212134240144 is a wasteful number, since it uses less digits than its factorization.

212134240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23863 (or 23857 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 212134240144 its reverse (441042431212), we get a palindrome (653176671356).

The spelling of 212134240144 in words is "two hundred twelve billion, one hundred thirty-four million, two hundred forty thousand, one hundred forty-four".