11130130011221 has 4 divisors (see below), whose sum is σ = 11986293858252. Its totient is φ = 10273966164192.

The previous prime is 11130130011191. The next prime is 11130130011271. The reversal of 11130130011221 is 12211003103111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2449381502500 + 8680748508721 = 1565050^2 + 2946311^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11130130011221 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 11130130011221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11130130011271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428081923496 + ... + 428081923521.

It is an arithmetic number, because the mean of its divisors is an integer number (2996573464563).

Almost surely, 2^{11130130011221} is an apocalyptic number.

It is an amenable number.

11130130011221 is a deficient number, since it is larger than the sum of its proper divisors (856163847031).

11130130011221 is an equidigital number, since it uses as much as digits as its factorization.

11130130011221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 856163847030.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 11130130011221 its reverse (12211003103111), we get a palindrome (23341133114332).

The spelling of 11130130011221 in words is "eleven trillion, one hundred thirty billion, one hundred thirty million, eleven thousand, two hundred twenty-one".