111101120220201 has 32 divisors (see below), whose sum is σ = 158010153840000. Its totient is φ = 69194923545600.

The previous prime is 111101120220179. The next prime is 111101120220203. The reversal of 111101120220201 is 102022021101111.

It is a happy number.

It is not a de Polignac number, because 111101120220201 - 2¹⁸ = 111101119958057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (111101120220203) 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 31 ways as a sum of consecutive naturals, for example, 5988075 + ... + 16064223.

It is an arithmetic number, because the mean of its divisors is an integer number (4937817307500).

Almost surely, 2^{111101120220201} is an apocalyptic number.

It is an amenable number.

111101120220201 is a deficient number, since it is larger than the sum of its proper divisors (46909033619799).

111101120220201 is a wasteful number, since it uses less digits than its factorization.

111101120220201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10077769.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111101120220201 its reverse (102022021101111), we get a palindrome (213123141321312).

The spelling of 111101120220201 in words is "one hundred eleven trillion, one hundred one billion, one hundred twenty million, two hundred twenty thousand, two hundred one".