1011012110205 has 16 divisors (see below), whose sum is σ = 1702757238720. Its totient is φ = 510827171328.

The previous prime is 1011012110197. The next prime is 1011012110209. The reversal of 1011012110205 is 5020112101101.

It is not a de Polignac number, because 1011012110205 - 2³ = 1011012110197 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1011012110209) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1773705172 + ... + 1773705741.

It is an arithmetic number, because the mean of its divisors is an integer number (106422327420).

Almost surely, 2^{1011012110205} is an apocalyptic number.

1011012110205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1011012110205 is a deficient number, since it is larger than the sum of its proper divisors (691745128515).

1011012110205 is a wasteful number, since it uses less digits than its factorization.

1011012110205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3547410940.

The product of its (nonzero) digits is 20, while the sum is 15.

Adding to 1011012110205 its reverse (5020112101101), we get a palindrome (6031124211306).

The spelling of 1011012110205 in words is "one trillion, eleven billion, twelve million, one hundred ten thousand, two hundred five".