11000021010 has 64 divisors (see below), whose sum is σ = 28811013120. Its totient is φ = 2665657280.

The previous prime is 11000020979. The next prime is 11000021017. The reversal of 11000021010 is 1012000011.

It is a Harshad number since it is a multiple of its sum of digits (6).

It is a self number, because there is not a number n which added to its sum of digits gives 11000021010.

It is not an unprimeable number, because it can be changed into a prime (11000021017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1222789 + ... + 1231751.

It is an arithmetic number, because the mean of its divisors is an integer number (450172080).

Almost surely, 2^11000021010 is an apocalyptic number.

11000021010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11000021010 is an abundant number, since it is smaller than the sum of its proper divisors (17810992110).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11000021010 is a wasteful number, since it uses less digits than its factorization.

11000021010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12703.

The product of its (nonzero) digits is 2, while the sum is 6.

Adding to 11000021010 its reverse (1012000011), we get a palindrome (12012021021).

The spelling of 11000021010 in words is "eleven billion, twenty-one thousand, ten".