212212442134 has 96 divisors (see below), whose sum is σ = 411106544640. Its totient is φ = 81219297600.

The previous prime is 212212442131. The next prime is 212212442173. The reversal of 212212442134 is 431244212212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212212442131) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 67005819 + ... + 67008985.

It is an arithmetic number, because the mean of its divisors is an integer number (4282359840).

Almost surely, 2^212212442134 is an apocalyptic number.

212212442134 is a deficient number, since it is larger than the sum of its proper divisors (198894102506).

212212442134 is a wasteful number, since it uses less digits than its factorization.

212212442134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4274 (or 4267 counting only the distinct ones).

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

Adding to 212212442134 its reverse (431244212212), we get a palindrome (643456654346).

The spelling of 212212442134 in words is "two hundred twelve billion, two hundred twelve million, four hundred forty-two thousand, one hundred thirty-four".