1111111120201 has 8 divisors (see below), whose sum is σ = 1130752188360. Its totient is φ = 1091629089408.

The previous prime is 1111111120183. The next prime is 1111111120283. The reversal of 1111111120201 is 1020211111111.

It can be written as a sum of positive squares in 4 ways, for example, as 221183030601 + 889928089600 = 470301^2 + 943360^2 .

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 1111111120201 - 2⁷ = 1111111120073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111111120291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39745246 + ... + 39773191.

It is an arithmetic number, because the mean of its divisors is an integer number (141344023545).

Almost surely, 2^{1111111120201} is an apocalyptic number.

It is an amenable number.

1111111120201 is a deficient number, since it is larger than the sum of its proper divisors (19641068159).

1111111120201 is an equidigital number, since it uses as much as digits as its factorization.

1111111120201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79518683.

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 1111111120201 its reverse (1020211111111), we get a palindrome (2131322231312).

The spelling of 1111111120201 in words is "one trillion, one hundred eleven billion, one hundred eleven million, one hundred twenty thousand, two hundred one".