11001020021211 has 16 divisors (see below), whose sum is σ = 16090877439360. Its totient is φ = 6630037456320.

The previous prime is 11001020021149. The next prime is 11001020021227. The reversal of 11001020021211 is 11212002010011.

It is not a de Polignac number, because 11001020021211 - 2⁷ = 11001020021083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11001020021261) 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, 931179130 + ... + 931190943.

It is an arithmetic number, because the mean of its divisors is an integer number (1005679839960).

Almost surely, 2^{11001020021211} is an apocalyptic number.

11001020021211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001020021211 is a deficient number, since it is larger than the sum of its proper divisors (5089857418149).

11001020021211 is a wasteful number, since it uses less digits than its factorization.

11001020021211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862370266.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11001020021211 its reverse (11212002010011), we get a palindrome (22213022031222).

The spelling of 11001020021211 in words is "eleven trillion, one billion, twenty million, twenty-one thousand, two hundred eleven".