1111120210205 has 16 divisors (see below), whose sum is σ = 1411801279344. Its totient is φ = 836593336320.

The previous prime is 1111120210199. The next prime is 1111120210219. The reversal of 1111120210205 is 5020120211111.

It can be written as a sum of positive squares in 8 ways, for example, as 4561381444 + 1106558828761 = 67538^2 + 1051931^2 .

It is not a de Polignac number, because 1111120210205 - 2²⁸ = 1110851774749 is a prime.

It is a super-2 number, since 2×1111120210205² (a number of 25 digits) contains 22 as substring.

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

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8215409 + ... + 8349561.

It is an arithmetic number, because the mean of its divisors is an integer number (88237579959).

Almost surely, 2^{1111120210205} is an apocalyptic number.

It is an amenable number.

1111120210205 is a deficient number, since it is larger than the sum of its proper divisors (300681069139).

1111120210205 is a wasteful number, since it uses less digits than its factorization.

1111120210205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 231616.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 1111120210205 its reverse (5020120211111), we get a palindrome (6131240421316).

The spelling of 1111120210205 in words is "one trillion, one hundred eleven billion, one hundred twenty million, two hundred ten thousand, two hundred five".