11221653859 has 8 divisors (see below), whose sum is σ = 12720903440. Its totient is φ = 9813267936.

The previous prime is 11221653851. The next prime is 11221653881. The reversal of 11221653859 is 95835612211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11221653859 - 2³ = 11221653851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11221653851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22715652 + ... + 22716145.

It is an arithmetic number, because the mean of its divisors is an integer number (1590112930).

Almost surely, 2^11221653859 is an apocalyptic number.

11221653859 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

11221653859 is a deficient number, since it is larger than the sum of its proper divisors (1499249581).

11221653859 is a wasteful number, since it uses less digits than its factorization.

11221653859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45431829.

The product of its digits is 129600, while the sum is 43.

The spelling of 11221653859 in words is "eleven billion, two hundred twenty-one million, six hundred fifty-three thousand, eight hundred fifty-nine".