11220443512 has 8 divisors (see below), whose sum is σ = 21038331600. Its totient is φ = 5610221752.

The previous prime is 11220443503. The next prime is 11220443519. The reversal of 11220443512 is 21534402211.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220443519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701277712 + ... + 701277727.

It is an arithmetic number, because the mean of its divisors is an integer number (2629791450).

Almost surely, 2^11220443512 is an apocalyptic number.

It is an amenable number.

11220443512 is a deficient number, since it is larger than the sum of its proper divisors (9817888088).

11220443512 is a wasteful number, since it uses less digits than its factorization.

11220443512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1402555445 (or 1402555441 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

Adding to 11220443512 its reverse (21534402211), we get a palindrome (32754845723).

The spelling of 11220443512 in words is "eleven billion, two hundred twenty million, four hundred forty-three thousand, five hundred twelve".