212112022233 has 4 divisors (see below), whose sum is σ = 282816029648. Its totient is φ = 141408014820.

The previous prime is 212112022223. The next prime is 212112022249. The reversal of 212112022233 is 332220211212.

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 not a de Polignac number, because 212112022233 - 2⁹ = 212112021721 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (212112022223) 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, 35352003703 + ... + 35352003708.

It is an arithmetic number, because the mean of its divisors is an integer number (70704007412).

Almost surely, 2^212112022233 is an apocalyptic number.

It is an amenable number.

212112022233 is a deficient number, since it is larger than the sum of its proper divisors (70704007415).

212112022233 is an equidigital number, since it uses as much as digits as its factorization.

212112022233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70704007414.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 212112022233 its reverse (332220211212), we get a palindrome (544332233445).

The spelling of 212112022233 in words is "two hundred twelve billion, one hundred twelve million, twenty-two thousand, two hundred thirty-three".