120211122222111 has 16 divisors (see below), whose sum is σ = 161187366599168. Its totient is φ = 79687924740000.

The previous prime is 120211122222071. The next prime is 120211122222283. The reversal of 120211122222111 is 111222221112021.

It is not a de Polignac number, because 120211122222111 - 2¹⁰ = 120211122221087 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 (120211122202111) 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, 9659515 + ... + 18268236.

It is an arithmetic number, because the mean of its divisors is an integer number (10074210412448).

Almost surely, 2^{120211122222111} is an apocalyptic number.

120211122222111 is a deficient number, since it is larger than the sum of its proper divisors (40976244377057).

120211122222111 is a wasteful number, since it uses less digits than its factorization.

120211122222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27935862.

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

Adding to 120211122222111 its reverse (111222221112021), we get a palindrome (231433343334132).

The spelling of 120211122222111 in words is "one hundred twenty trillion, two hundred eleven billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".