22212012222011 has 4 divisors (see below), whose sum is σ = 22309007908800. Its totient is φ = 22115016535224.

The previous prime is 22212012222007. The next prime is 22212012222041. The reversal of 22212012222011 is 11022221021222.

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

It is a cyclic number.

It is not a de Polignac number, because 22212012222011 - 2² = 22212012222007 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22212012222041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48497843051 + ... + 48497843508.

It is an arithmetic number, because the mean of its divisors is an integer number (5577251977200).

Almost surely, 2^{22212012222011} is an apocalyptic number.

22212012222011 is a deficient number, since it is larger than the sum of its proper divisors (96995686789).

22212012222011 is an equidigital number, since it uses as much as digits as its factorization.

22212012222011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96995686788.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 22212012222011 its reverse (11022221021222), we get a palindrome (33234233243233).

The spelling of 22212012222011 in words is "twenty-two trillion, two hundred twelve billion, twelve million, two hundred twenty-two thousand, eleven".