111012001122221 has 8 divisors (see below), whose sum is σ = 111352156910688. Its totient is φ = 110671874082000.

The previous prime is 111012001122203. The next prime is 111012001122223. The reversal of 111012001122221 is 122221100210111.

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 111012001122221 - 2³⁴ = 110994821253037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111012001122221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111012001122223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560591 + ... + 14911011.

It is an arithmetic number, because the mean of its divisors is an integer number (13919019613836).

Almost surely, 2^{111012001122221} is an apocalyptic number.

It is an amenable number.

111012001122221 is a deficient number, since it is larger than the sum of its proper divisors (340155788467).

111012001122221 is a wasteful number, since it uses less digits than its factorization.

111012001122221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14374123.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012001122221 its reverse (122221100210111), we get a palindrome (233233101332332).

The spelling of 111012001122221 in words is "one hundred eleven trillion, twelve billion, one million, one hundred twenty-two thousand, two hundred twenty-one".