11056310541221 has 16 divisors (see below), whose sum is σ = 12374408214720. Its totient is φ = 9793391166720.

The previous prime is 11056310541197. The next prime is 11056310541247. The reversal of 11056310541221 is 12214501365011.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11056310541221 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 (11056310541271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 75306830 + ... + 75453503.

It is an arithmetic number, because the mean of its divisors is an integer number (773400513420).

Almost surely, 2^{11056310541221} is an apocalyptic number.

11056310541221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11056310541221 is a deficient number, since it is larger than the sum of its proper divisors (1318097673499).

11056310541221 is a wasteful number, since it uses less digits than its factorization.

11056310541221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150760516.

The product of its (nonzero) digits is 7200, while the sum is 32.

The spelling of 11056310541221 in words is "eleven trillion, fifty-six billion, three hundred ten million, five hundred forty-one thousand, two hundred twenty-one".