212223024243 has 16 divisors (see below), whose sum is σ = 322072884000. Its totient is φ = 138031234560.

The previous prime is 212223024239. The next prime is 212223024271. The reversal of 212223024243 is 342420322212.

212223024243 is a `hidden beast` number, since 2 + 1 + 2 + 2 + 230 + 2 + 424 + 3 = 666.

It is not a de Polignac number, because 212223024243 - 2² = 212223024239 is a prime.

It is a super-2 number, since 2×212223024243² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (212223026243) 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, 95853918 + ... + 95856131.

It is an arithmetic number, because the mean of its divisors is an integer number (20129555250).

Almost surely, 2^212223024243 is an apocalyptic number.

212223024243 is a deficient number, since it is larger than the sum of its proper divisors (109849859757).

212223024243 is a wasteful number, since it uses less digits than its factorization.

212223024243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191710099 (or 191710093 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 212223024243 its reverse (342420322212), we get a palindrome (554643346455).

The spelling of 212223024243 in words is "two hundred twelve billion, two hundred twenty-three million, twenty-four thousand, two hundred forty-three".