11131220002211 has 4 divisors (see below), whose sum is σ = 11131340584512. Its totient is φ = 11131099419912.

The previous prime is 11131220002183. The next prime is 11131220002261. The reversal of 11131220002211 is 11220002213111.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11131220002211 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11131220002211.

It is not an unprimeable number, because it can be changed into a prime (11131220002261) 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, 60152576 + ... + 60337341.

It is an arithmetic number, because the mean of its divisors is an integer number (2782835146128).

Almost surely, 2^{11131220002211} is an apocalyptic number.

11131220002211 is a deficient number, since it is larger than the sum of its proper divisors (120582301).

11131220002211 is an equidigital number, since it uses as much as digits as its factorization.

11131220002211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120582300.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 11131220002211 its reverse (11220002213111), we get a palindrome (22351222215322).

The spelling of 11131220002211 in words is "eleven trillion, one hundred thirty-one billion, two hundred twenty million, two thousand, two hundred eleven".