810212011011 has 12 divisors (see below), whose sum is σ = 1260329795088. Its totient is φ = 498592006704.

The previous prime is 810212011009. The next prime is 810212011027. The reversal of 810212011011 is 110110212018.

It is not a de Polignac number, because 810212011011 - 2¹ = 810212011009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (810212011111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3462444375 + ... + 3462444608.

It is an arithmetic number, because the mean of its divisors is an integer number (105027482924).

Almost surely, 2^810212011011 is an apocalyptic number.

810212011011 is a deficient number, since it is larger than the sum of its proper divisors (450117784077).

810212011011 is a wasteful number, since it uses less digits than its factorization.

810212011011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6924889002 (or 6924888999 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 810212011011 its reverse (110110212018), we get a palindrome (920322223029).

The spelling of 810212011011 in words is "eight hundred ten billion, two hundred twelve million, eleven thousand, eleven".