11222223456789 has 64 divisors (see below), whose sum is σ = 17546637312000. Its totient is φ = 7069074508800.

The previous prime is 11222223456767. The next prime is 11222223456803. The reversal of 11222223456789 is 98765432222211.

It is a happy number.

11222223456789 is a `hidden beast` number, since 1 + 1 + 2 + 2 + 222 + 345 + 6 + 78 + 9 = 666.

It is not a de Polignac number, because 11222223456789 - 2⁵ = 11222223456757 is a prime.

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 (11222223456749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 340680682 + ... + 340713620.

It is an arithmetic number, because the mean of its divisors is an integer number (274166208000).

Almost surely, 2^{11222223456789} is an apocalyptic number.

11222223456789 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

11222223456789 is a deficient number, since it is larger than the sum of its proper divisors (6324413855211).

11222223456789 is a wasteful number, since it uses less digits than its factorization.

11222223456789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34695 (or 34689 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The spelling of 11222223456789 in words is "eleven trillion, two hundred twenty-two billion, two hundred twenty-three million, four hundred fifty-six thousand, seven hundred eighty-nine".