10211202012005 has 4 divisors (see below), whose sum is σ = 12253442414412. Its totient is φ = 8168961609600.

The previous prime is 10211202012001. The next prime is 10211202012007. The reversal of 10211202012005 is 50021020211201.

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 5599157992516 + 4612044019489 = 2366254^2 + 2147567^2 .

It is not a de Polignac number, because 10211202012005 - 2² = 10211202012001 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 (10211202012001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1021120201196 + ... + 1021120201205.

It is an arithmetic number, because the mean of its divisors is an integer number (3063360603603).

Almost surely, 2^{10211202012005} is an apocalyptic number.

It is an amenable number.

10211202012005 is a deficient number, since it is larger than the sum of its proper divisors (2042240402407).

10211202012005 is an equidigital number, since it uses as much as digits as its factorization.

10211202012005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2042240402406.

The product of its (nonzero) digits is 80, while the sum is 17.

Adding to 10211202012005 its reverse (50021020211201), we get a palindrome (60232222223206).

The spelling of 10211202012005 in words is "ten trillion, two hundred eleven billion, two hundred two million, twelve thousand, five".