111122121101201 has 16 divisors (see below), whose sum is σ = 128120188416000. Its totient is φ = 94408563216528.

The previous prime is 111122121101183. The next prime is 111122121101291. The reversal of 111122121101201 is 102101121221111.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111122121101201 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 111122121101201.

It is not an unprimeable number, because it can be changed into a prime (111122121101291) 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, 151291061 + ... + 152023778.

It is an arithmetic number, because the mean of its divisors is an integer number (8007511776000).

Almost surely, 2^{111122121101201} is an apocalyptic number.

It is an amenable number.

111122121101201 is a deficient number, since it is larger than the sum of its proper divisors (16998067314799).

111122121101201 is a wasteful number, since it uses less digits than its factorization.

111122121101201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303315308.

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

Adding to 111122121101201 its reverse (102101121221111), we get a palindrome (213223242322312).

The spelling of 111122121101201 in words is "one hundred eleven trillion, one hundred twenty-two billion, one hundred twenty-one million, one hundred one thousand, two hundred one".