111381771072226 has 16 divisors (see below), whose sum is σ = 167948579473920. Its totient is φ = 55398915403920.

The previous prime is 111381771072223. The next prime is 111381771072263. The reversal of 111381771072226 is 622270177183111.

It is a self number, because there is not a number n which added to its sum of digits gives 111381771072226.

It is not an unprimeable number, because it can be changed into a prime (111381771072223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56848180 + ... + 58774816.

It is an arithmetic number, because the mean of its divisors is an integer number (10496786217120).

Almost surely, 2^{111381771072226} is an apocalyptic number.

111381771072226 is a deficient number, since it is larger than the sum of its proper divisors (56566808401694).

111381771072226 is a wasteful number, since it uses less digits than its factorization.

111381771072226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2078169.

The product of its (nonzero) digits is 395136, while the sum is 49.

The spelling of 111381771072226 in words is "one hundred eleven trillion, three hundred eighty-one billion, seven hundred seventy-one million, seventy-two thousand, two hundred twenty-six".