120111222211111 has 8 divisors (see below), whose sum is σ = 131929946593920. Its totient is φ = 108842205939192.

The previous prime is 120111222211103. The next prime is 120111222211133. The reversal of 120111222211111 is 111112222111021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120111222211111 - 2³ = 120111222211103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111222211181) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 137427027265 + ... + 137427028138.

It is an arithmetic number, because the mean of its divisors is an integer number (16491243324240).

Almost surely, 2^{120111222211111} is an apocalyptic number.

120111222211111 is a deficient number, since it is larger than the sum of its proper divisors (11818724382809).

120111222211111 is a wasteful number, since it uses less digits than its factorization.

120111222211111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274854055445.

The product of its (nonzero) digits is 32, while the sum is 19.

Adding to 120111222211111 its reverse (111112222111021), we get a palindrome (231223444322132).

The spelling of 120111222211111 in words is "one hundred twenty trillion, one hundred eleven billion, two hundred twenty-two million, two hundred eleven thousand, one hundred eleven".