22120122211 has 32 divisors (see below), whose sum is σ = 24752952000. Its totient is φ = 19599360000.

The previous prime is 22120122191. The next prime is 22120122223. The reversal of 22120122211 is 11222102122.

It is a happy number.

It is not a de Polignac number, because 22120122211 - 2¹³ = 22120114019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120122811) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 34508451 + ... + 34509091.

It is an arithmetic number, because the mean of its divisors is an integer number (773529750).

Almost surely, 2^22120122211 is an apocalyptic number.

22120122211 is a deficient number, since it is larger than the sum of its proper divisors (2632829789).

22120122211 is a wasteful number, since it uses less digits than its factorization.

22120122211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 22120122211 its reverse (11222102122), we get a palindrome (33342224333).

The spelling of 22120122211 in words is "twenty-two billion, one hundred twenty million, one hundred twenty-two thousand, two hundred eleven".