212243042134331 has 64 divisors (see below), whose sum is σ = 248706237696000. Its totient is φ = 179655740522496.

The previous prime is 212243042134309. The next prime is 212243042134363. The reversal of 212243042134331 is 133431240342212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212243042134331 - 2¹⁴ = 212243042117947 is a prime.

It is a super-2 number, since 2×212243042134331² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 212243042134291 and 212243042134300.

It is not an unprimeable number, because it can be changed into a prime (212243042134301) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 97698470 + ... + 99847268.

It is an arithmetic number, because the mean of its divisors is an integer number (3886034964000).

Almost surely, 2^{212243042134331} is an apocalyptic number.

212243042134331 is a deficient number, since it is larger than the sum of its proper divisors (36463195561669).

212243042134331 is a wasteful number, since it uses less digits than its factorization.

212243042134331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2149048.

The product of its (nonzero) digits is 82944, while the sum is 35.

Adding to 212243042134331 its reverse (133431240342212), we get a palindrome (345674282476543).

The spelling of 212243042134331 in words is "two hundred twelve trillion, two hundred forty-three billion, forty-two million, one hundred thirty-four thousand, three hundred thirty-one".