11220554441 has 4 divisors (see below), whose sum is σ = 11231566800. Its totient is φ = 11209542084.

The previous prime is 11220554431. The next prime is 11220554491. The reversal of 11220554441 is 14445502211.

It is a happy number.

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-11220554441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11220554431) 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, 5504651 + ... + 5506688.

It is an arithmetic number, because the mean of its divisors is an integer number (2807891700).

Almost surely, 2^11220554441 is an apocalyptic number.

It is an amenable number.

11220554441 is a deficient number, since it is larger than the sum of its proper divisors (11012359).

11220554441 is a wasteful number, since it uses less digits than its factorization.

11220554441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11012358.

The product of its (nonzero) digits is 6400, while the sum is 29.

The spelling of 11220554441 in words is "eleven billion, two hundred twenty million, five hundred fifty-four thousand, four hundred forty-one".