22122112201111 has 16 divisors (see below), whose sum is σ = 23831451673344. Its totient is φ = 20413865032704.

The previous prime is 22122112201109. The next prime is 22122112201153. The reversal of 22122112201111 is 11110221122122.

It is a happy number.

It is not a de Polignac number, because 22122112201111 - 2¹ = 22122112201109 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 (22122112201711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 797380506 + ... + 797408248.

It is an arithmetic number, because the mean of its divisors is an integer number (1489465729584).

Almost surely, 2^{22122112201111} is an apocalyptic number.

22122112201111 is a deficient number, since it is larger than the sum of its proper divisors (1709339472233).

22122112201111 is a wasteful number, since it uses less digits than its factorization.

22122112201111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45210.

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 22122112201111 its reverse (11110221122122), we get a palindrome (33232333323233).

The spelling of 22122112201111 in words is "twenty-two trillion, one hundred twenty-two billion, one hundred twelve million, two hundred one thousand, one hundred eleven".