111444140522206 has 4 divisors (see below), whose sum is σ = 167166210783312. Its totient is φ = 55722070261102.

The previous prime is 111444140522191. The next prime is 111444140522227. The reversal of 111444140522206 is 602225041444111.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27861035130550 + ... + 27861035130553.

It is an arithmetic number, because the mean of its divisors is an integer number (41791552695828).

Almost surely, 2^{111444140522206} is an apocalyptic number.

111444140522206 is a deficient number, since it is larger than the sum of its proper divisors (55722070261106).

111444140522206 is an equidigital number, since it uses as much as digits as its factorization.

111444140522206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55722070261105.

The product of its (nonzero) digits is 61440, while the sum is 37.

Adding to 111444140522206 its reverse (602225041444111), we get a palindrome (713669181966317).

The spelling of 111444140522206 in words is "one hundred eleven trillion, four hundred forty-four billion, one hundred forty million, five hundred twenty-two thousand, two hundred six".