212223012243 has 16 divisors (see below), whose sum is σ = 311744339712. Its totient is φ = 127346540000.

The previous prime is 212223012241. The next prime is 212223012283. The reversal of 212223012243 is 342210322212.

It is a cyclic number.

It is not a de Polignac number, because 212223012243 - 2¹ = 212223012241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212223012241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31833303 + ... + 31839968.

It is an arithmetic number, because the mean of its divisors is an integer number (19484021232).

Almost surely, 2^212223012243 is an apocalyptic number.

212223012243 is a deficient number, since it is larger than the sum of its proper divisors (99521327469).

212223012243 is a wasteful number, since it uses less digits than its factorization.

212223012243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63673386.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 212223012243 its reverse (342210322212), we get a palindrome (554433334455).

The spelling of 212223012243 in words is "two hundred twelve billion, two hundred twenty-three million, twelve thousand, two hundred forty-three".