211224223222 has 8 divisors (see below), whose sum is σ = 318232090296. Its totient is φ = 105146859792.

The previous prime is 211224223213. The next prime is 211224223229. The reversal of 211224223222 is 222322422112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×211224223222² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211224223229) 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, 232625343 + ... + 232626250.

It is an arithmetic number, because the mean of its divisors is an integer number (39779011287).

Almost surely, 2^211224223222 is an apocalyptic number.

211224223222 is a deficient number, since it is larger than the sum of its proper divisors (107007867074).

211224223222 is a wasteful number, since it uses less digits than its factorization.

211224223222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 465251822.

The product of its digits is 3072, while the sum is 25.

Adding to 211224223222 its reverse (222322422112), we get a palindrome (433546645334).

The spelling of 211224223222 in words is "two hundred eleven billion, two hundred twenty-four million, two hundred twenty-three thousand, two hundred twenty-two".