201122120222111 has 16 divisors (see below), whose sum is σ = 231212123993088. Its totient is φ = 173157227892000.

The previous prime is 201122120222083. The next prime is 201122120222117. The reversal of 201122120222111 is 111222021221102.

It is a de Polignac number, because none of the positive numbers 2^k-201122120222111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201122120222117) 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, 3935365991 + ... + 3935417096.

It is an arithmetic number, because the mean of its divisors is an integer number (14450757749568).

Almost surely, 2^{201122120222111} is an apocalyptic number.

201122120222111 is a deficient number, since it is larger than the sum of its proper divisors (30090003770977).

201122120222111 is a wasteful number, since it uses less digits than its factorization.

201122120222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7870783222.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 201122120222111 its reverse (111222021221102), we get a palindrome (312344141443213).

The spelling of 201122120222111 in words is "two hundred one trillion, one hundred twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, one hundred eleven".