120221222111111 has 32 divisors (see below), whose sum is σ = 134276522688000. Its totient is φ = 106689840163200.

The previous prime is 120221222111093. The next prime is 120221222111227. The reversal of 120221222111111 is 111111222122021.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120221222111111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120221222110111) 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, 7633570265 + ... + 7633586013.

It is an arithmetic number, because the mean of its divisors is an integer number (4196141334000).

Almost surely, 2^{120221222111111} is an apocalyptic number.

120221222111111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120221222111111 is a deficient number, since it is larger than the sum of its proper divisors (14055300576889).

120221222111111 is a wasteful number, since it uses less digits than its factorization.

120221222111111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23927.

The product of its (nonzero) digits is 64, while the sum is 20.

Adding to 120221222111111 its reverse (111111222122021), we get a palindrome (231332444233132).

The spelling of 120221222111111 in words is "one hundred twenty trillion, two hundred twenty-one billion, two hundred twenty-two million, one hundred eleven thousand, one hundred eleven".