11221011010999 has 4 divisors (see below), whose sum is σ = 11582979108160. Its totient is φ = 10859042913840.

The previous prime is 11221011010997. The next prime is 11221011011047. The reversal of 11221011010999 is 99901011012211.

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 11221011010999 - 2¹ = 11221011010997 is a prime.

It is a super-2 number, since 2×11221011010999² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11221011010997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180984048534 + ... + 180984048595.

It is an arithmetic number, because the mean of its divisors is an integer number (2895744777040).

Almost surely, 2^{11221011010999} is an apocalyptic number.

11221011010999 is a deficient number, since it is larger than the sum of its proper divisors (361968097161).

11221011010999 is an equidigital number, since it uses as much as digits as its factorization.

11221011010999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361968097160.

The product of its (nonzero) digits is 2916, while the sum is 37.

The spelling of 11221011010999 in words is "eleven trillion, two hundred twenty-one billion, eleven million, ten thousand, nine hundred ninety-nine".