11001012220999 has 4 divisors (see below), whose sum is σ = 11022625212120. Its totient is φ = 10979399229880.

The previous prime is 11001012220967. The next prime is 11001012221011. The reversal of 11001012220999 is 99902221010011.

11001012220999 is digitally balanced in base 2, 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 is a cyclic number.

It is not a de Polignac number, because 11001012220999 - 2⁵ = 11001012220967 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 (11001012227999) 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, 10806494797 + ... + 10806495814.

It is an arithmetic number, because the mean of its divisors is an integer number (2755656303030).

Almost surely, 2^{11001012220999} is an apocalyptic number.

11001012220999 is a deficient number, since it is larger than the sum of its proper divisors (21612991121).

11001012220999 is an equidigital number, since it uses as much as digits as its factorization.

11001012220999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21612991120.

The product of its (nonzero) digits is 5832, while the sum is 37.

The spelling of 11001012220999 in words is "eleven trillion, one billion, twelve million, two hundred twenty thousand, nine hundred ninety-nine".