11001131022211 has 4 divisors (see below), whose sum is σ = 12001233842424. Its totient is φ = 10001028202000.

The previous prime is 11001131022191. The next prime is 11001131022223. The reversal of 11001131022211 is 11222013110011.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 11001131022211 - 2⁵ = 11001131022179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11001131022311) 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, 500051410090 + ... + 500051410111.

It is an arithmetic number, because the mean of its divisors is an integer number (3000308460606).

Almost surely, 2^{11001131022211} is an apocalyptic number.

11001131022211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11001131022211 is a deficient number, since it is larger than the sum of its proper divisors (1000102820213).

11001131022211 is a wasteful number, since it uses less digits than its factorization.

11001131022211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000102820212.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 11001131022211 its reverse (11222013110011), we get a palindrome (22223144132222).

The spelling of 11001131022211 in words is "eleven trillion, one billion, one hundred thirty-one million, twenty-two thousand, two hundred eleven".