211143204223222 has 4 divisors (see below), whose sum is σ = 316714806334836. Its totient is φ = 105571602111610.

The previous prime is 211143204223213. The next prime is 211143204223247. The reversal of 211143204223222 is 222322402341112.

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

It is a super-2 number, since 2×211143204223222² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52785801055804 + ... + 52785801055807.

It is an arithmetic number, because the mean of its divisors is an integer number (79178701583709).

Almost surely, 2^{211143204223222} is an apocalyptic number.

211143204223222 is a deficient number, since it is larger than the sum of its proper divisors (105571602111614).

211143204223222 is a wasteful number, since it uses less digits than its factorization.

211143204223222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105571602111613.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 211143204223222 its reverse (222322402341112), we get a palindrome (433465606564334).

The spelling of 211143204223222 in words is "two hundred eleven trillion, one hundred forty-three billion, two hundred four million, two hundred twenty-three thousand, two hundred twenty-two".