122221110222111 has 16 divisors (see below), whose sum is σ = 164134489034880. Its totient is φ = 80894240236320.

The previous prime is 122221110222083. The next prime is 122221110222151. The reversal of 122221110222111 is 111222011122221.

It is not a de Polignac number, because 122221110222111 - 2¹¹ = 122221110220063 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122221110222151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 177132121 + ... + 177820781.

It is an arithmetic number, because the mean of its divisors is an integer number (10258405564680).

Almost surely, 2^{122221110222111} is an apocalyptic number.

122221110222111 is a deficient number, since it is larger than the sum of its proper divisors (41913378812769).

122221110222111 is a wasteful number, since it uses less digits than its factorization.

122221110222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1114406.

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 122221110222111 its reverse (111222011122221), we get a palindrome (233443121344332).

The spelling of 122221110222111 in words is "one hundred twenty-two trillion, two hundred twenty-one billion, one hundred ten million, two hundred twenty-two thousand, one hundred eleven".