11220985693 has 4 divisors (see below), whose sum is σ = 11230635168. Its totient is φ = 11211336220.

The previous prime is 11220985691. The next prime is 11220985703. The reversal of 11220985693 is 39658902211.

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, and also an emirpimes, since its reverse is a distinct semiprime: 39658902211 = 1223 ⋅32427557.

It is a cyclic number.

It is not a de Polignac number, because 11220985693 - 2¹ = 11220985691 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 (11220985691) 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 3 ways as a sum of consecutive naturals, for example, 4822993 + ... + 4825318.

It is an arithmetic number, because the mean of its divisors is an integer number (2807658792).

Almost surely, 2^11220985693 is an apocalyptic number.

It is an amenable number.

11220985693 is a deficient number, since it is larger than the sum of its proper divisors (9649475).

11220985693 is an equidigital number, since it uses as much as digits as its factorization.

11220985693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9649474.

The product of its (nonzero) digits is 233280, while the sum is 46.

The spelling of 11220985693 in words is "eleven billion, two hundred twenty million, nine hundred eighty-five thousand, six hundred ninety-three".