11032112221 has 8 divisors (see below), whose sum is σ = 11886973560. Its totient is φ = 10178141952.

The previous prime is 11032112191. The next prime is 11032112237. The reversal of 11032112221 is 12221123011.

It can be written as a sum of positive squares in 4 ways, for example, as 400440121 + 10631672100 = 20011^2 + 103110^2 .

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 11032112221 - 2³³ = 2442177629 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11032112195 and 11032112204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11032112521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196936 + ... + 246673.

It is an arithmetic number, because the mean of its divisors is an integer number (1485871695).

Almost surely, 2^11032112221 is an apocalyptic number.

It is an amenable number.

11032112221 is a deficient number, since it is larger than the sum of its proper divisors (854861339).

11032112221 is a wasteful number, since it uses less digits than its factorization.

11032112221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445535.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11032112221 its reverse (12221123011), we get a palindrome (23253235232).

The spelling of 11032112221 in words is "eleven billion, thirty-two million, one hundred twelve thousand, two hundred twenty-one".