22220122211 has 8 divisors (see below), whose sum is σ = 25409092704. Its totient is φ = 19034818560.

The previous prime is 22220122207. The next prime is 22220122229. The reversal of 22220122211 is 11222102222.

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 22220122211 - 2² = 22220122207 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 22220122211.

It is not an unprimeable number, because it can be changed into a prime (22220122271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 903710 + ... + 927971.

It is an arithmetic number, because the mean of its divisors is an integer number (3176136588).

Almost surely, 2^22220122211 is an apocalyptic number.

22220122211 is a deficient number, since it is larger than the sum of its proper divisors (3188970493).

22220122211 is a wasteful number, since it uses less digits than its factorization.

22220122211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1833421.

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

Adding to 22220122211 its reverse (11222102222), we get a palindrome (33442224433).

The spelling of 22220122211 in words is "twenty-two billion, two hundred twenty million, one hundred twenty-two thousand, two hundred eleven".