11222344556789 has 4 divisors (see below), whose sum is σ = 11247677163456. Its totient is φ = 11197011950124.

The previous prime is 11222344556651. The next prime is 11222344556803. The reversal of 11222344556789 is 98765544322211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11222344556789 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a plaindrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11222344556389) 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, 12666302669 + ... + 12666303554.

It is an arithmetic number, because the mean of its divisors is an integer number (2811919290864).

Almost surely, 2^{11222344556789} is an apocalyptic number.

It is an amenable number.

11222344556789 is a deficient number, since it is larger than the sum of its proper divisors (25332606667).

11222344556789 is an equidigital number, since it uses as much as digits as its factorization.

11222344556789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25332606666.

The product of its digits is 29030400, while the sum is 59.

The spelling of 11222344556789 in words is "eleven trillion, two hundred twenty-two billion, three hundred forty-four million, five hundred fifty-six thousand, seven hundred eighty-nine".