212243512031233 has 4 divisors (see below), whose sum is σ = 212256895205680. Its totient is φ = 212230128856788.

The previous prime is 212243512031207. The next prime is 212243512031263. The reversal of 212243512031233 is 332130215342212.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212243512031233 - 2⁹ = 212243512030721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212243512031263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6691563435 + ... + 6691595152.

It is an arithmetic number, because the mean of its divisors is an integer number (53064223801420).

Almost surely, 2^{212243512031233} is an apocalyptic number.

It is an amenable number.

212243512031233 is a deficient number, since it is larger than the sum of its proper divisors (13383174447).

212243512031233 is a wasteful number, since it uses less digits than its factorization.

212243512031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13383174446.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 212243512031233 its reverse (332130215342212), we get a palindrome (544373727373445).

The spelling of 212243512031233 in words is "two hundred twelve trillion, two hundred forty-three billion, five hundred twelve million, thirty-one thousand, two hundred thirty-three".