211222012222 has 8 divisors (see below), whose sum is σ = 341204789016. Its totient is φ = 97487082552.

The previous prime is 211222012201. The next prime is 211222012241. The reversal of 211222012222 is 222210222112.

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

It is a super-2 number, since 2×211222012222² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 211222012222.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4061961748 + ... + 4061961799.

It is an arithmetic number, because the mean of its divisors is an integer number (42650598627).

Almost surely, 2^211222012222 is an apocalyptic number.

211222012222 is a deficient number, since it is larger than the sum of its proper divisors (129982776794).

211222012222 is a wasteful number, since it uses less digits than its factorization.

211222012222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8123923562.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 211222012222 its reverse (222210222112), we get a palindrome (433432234334).

The spelling of 211222012222 in words is "two hundred eleven billion, two hundred twenty-two million, twelve thousand, two hundred twenty-two".