1205101101 has 8 divisors (see below), whose sum is σ = 1644169120. Its totient is φ = 784716912.

The previous prime is 1205101097. The next prime is 1205101127. The reversal of 1205101101 is 1011015021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1205101101 - 2² = 1205101097 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1205101171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4670806 + ... + 4671063.

It is an arithmetic number, because the mean of its divisors is an integer number (205521140).

Almost surely, 2^1205101101 is an apocalyptic number.

It is an amenable number.

1205101101 is a deficient number, since it is larger than the sum of its proper divisors (439068019).

1205101101 is an equidigital number, since it uses as much as digits as its factorization.

1205101101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9341915.

The product of its (nonzero) digits is 10, while the sum is 12.

The square root of 1205101101 is about 34714.5661214425. The cubic root of 1205101101 is about 1064.1621985590.

Adding to 1205101101 its reverse (1011015021), we get a palindrome (2216116122).

The spelling of 1205101101 in words is "one billion, two hundred five million, one hundred one thousand, one hundred one".