111121112001122 has 32 divisors (see below), whose sum is σ = 178930273992624. Its totient is φ = 51568408166400.

The previous prime is 111121112001121. The next prime is 111121112001127. The reversal of 111121112001122 is 221100211121111.

It can be written as a sum of positive squares in 8 ways, for example, as 58571791674841 + 52549320326281 = 7653221^2 + 7249091^2 .

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 111121112001122.

It is not an unprimeable number, because it can be changed into a prime (111121112001121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13707122 + ... + 20251602.

Almost surely, 2^{111121112001122} is an apocalyptic number.

111121112001122 is a deficient number, since it is larger than the sum of its proper divisors (67809161991502).

111121112001122 is a wasteful number, since it uses less digits than its factorization.

111121112001122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6551414.

The product of its (nonzero) digits is 16, while the sum is 17.

Adding to 111121112001122 its reverse (221100211121111), we get a palindrome (332221323122233).

The spelling of 111121112001122 in words is "one hundred eleven trillion, one hundred twenty-one billion, one hundred twelve million, one thousand, one hundred twenty-two".