212223436463 has 4 divisors (see below), whose sum is σ = 214411307040. Its totient is φ = 210035565888.

The previous prime is 212223436441. The next prime is 212223436483. The reversal of 212223436463 is 364634322212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212223436463 - 2¹² = 212223432367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212223436483) 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, 1093935143 + ... + 1093935336.

It is an arithmetic number, because the mean of its divisors is an integer number (53602826760).

Almost surely, 2^212223436463 is an apocalyptic number.

212223436463 is a deficient number, since it is larger than the sum of its proper divisors (2187870577).

212223436463 is an equidigital number, since it uses as much as digits as its factorization.

212223436463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2187870576.

The product of its digits is 248832, while the sum is 38.

Adding to 212223436463 its reverse (364634322212), we get a palindrome (576857758675).

The spelling of 212223436463 in words is "two hundred twelve billion, two hundred twenty-three million, four hundred thirty-six thousand, four hundred sixty-three".