22012220211 has 16 divisors (see below), whose sum is σ = 31098808224. Its totient is φ = 13801485824.

The previous prime is 22012220207. The next prime is 22012220239. The reversal of 22012220211 is 11202221022.

It is a cyclic number.

It is not a de Polignac number, because 22012220211 - 2² = 22012220207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (22012221211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87156 + ... + 227201.

It is an arithmetic number, because the mean of its divisors is an integer number (1943675514).

Almost surely, 2^22012220211 is an apocalyptic number.

22012220211 is a deficient number, since it is larger than the sum of its proper divisors (9086588013).

22012220211 is a wasteful number, since it uses less digits than its factorization.

22012220211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315750.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 22012220211 its reverse (11202221022), we get a palindrome (33214441233).

The spelling of 22012220211 in words is "twenty-two billion, twelve million, two hundred twenty thousand, two hundred eleven".