22222012211 has 8 divisors (see below), whose sum is σ = 25590453504. Its totient is φ = 18902037960.

The previous prime is 22222012201. The next prime is 22222012243. The reversal of 22222012211 is 11221022222.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22222012211 - 2²² = 22217817907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22222012211.

It is not an unprimeable number, because it can be changed into a prime (22222012201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12115775 + ... + 12117608.

It is an arithmetic number, because the mean of its divisors is an integer number (3198806688).

Almost surely, 2^22222012211 is an apocalyptic number.

22222012211 is a deficient number, since it is larger than the sum of its proper divisors (3368441293).

22222012211 is a wasteful number, since it uses less digits than its factorization.

22222012211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24233521.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22222012211 its reverse (11221022222), we get a palindrome (33443034433).

The spelling of 22222012211 in words is "twenty-two billion, two hundred twenty-two million, twelve thousand, two hundred eleven".