1011201112205 has 16 divisors (see below), whose sum is σ = 1314699781824. Its totient is φ = 743668558080.

The previous prime is 1011201112189. The next prime is 1011201112231. The reversal of 1011201112205 is 5022111021101.

It is not a de Polignac number, because 1011201112205 - 2⁴ = 1011201112189 is a prime.

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 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, 138327551 + ... + 138334860.

It is an arithmetic number, because the mean of its divisors is an integer number (82168736364).

Almost surely, 2^{1011201112205} is an apocalyptic number.

It is an amenable number.

1011201112205 is a deficient number, since it is larger than the sum of its proper divisors (303498669619).

1011201112205 is a wasteful number, since it uses less digits than its factorization.

1011201112205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276662476.

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

Adding to 1011201112205 its reverse (5022111021101), we get a palindrome (6033312133306).

The spelling of 1011201112205 in words is "one trillion, eleven billion, two hundred one million, one hundred twelve thousand, two hundred five".