10211011205 has 4 divisors (see below), whose sum is σ = 12253213452. Its totient is φ = 8168808960.

The previous prime is 10211011183. The next prime is 10211011219. The reversal of 10211011205 is 50211011201.

10211011205 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4696909156 + 5514102049 = 68534^2 + 74257^2 .

It is not a de Polignac number, because 10211011205 - 2³² = 5916043909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10211011205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021101116 + ... + 1021101125.

It is an arithmetic number, because the mean of its divisors is an integer number (3063303363).

Almost surely, 2^10211011205 is an apocalyptic number.

It is an amenable number.

10211011205 is a deficient number, since it is larger than the sum of its proper divisors (2042202247).

10211011205 is an equidigital number, since it uses as much as digits as its factorization.

10211011205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2042202246.

The product of its (nonzero) digits is 20, while the sum is 14.

Adding to 10211011205 its reverse (50211011201), we get a palindrome (60422022406).

The spelling of 10211011205 in words is "ten billion, two hundred eleven million, eleven thousand, two hundred five".