22111122212211 has 8 divisors (see below), whose sum is σ = 29483961544960. Its totient is φ = 14739515510472.

The previous prime is 22111122212183. The next prime is 22111122212239. The reversal of 22111122212211 is 11221222111122.

It is an interprime number because it is at equal distance from previous prime (22111122212183) and next prime (22111122212239).

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

It is not a de Polignac number, because 22111122212211 - 2⁴³ = 13315029190003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22111122212911) 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, 308115895 + ... + 308187648.

It is an arithmetic number, because the mean of its divisors is an integer number (3685495193120).

Almost surely, 2^{22111122212211} is an apocalyptic number.

22111122212211 is a deficient number, since it is larger than the sum of its proper divisors (7372839332749).

22111122212211 is a wasteful number, since it uses less digits than its factorization.

22111122212211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 616315505.

The product of its digits is 128, while the sum is 21.

Adding to 22111122212211 its reverse (11221222111122), we get a palindrome (33332344323333).

The spelling of 22111122212211 in words is "twenty-two trillion, one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, two hundred eleven".