10011132221 has 4 divisors (see below), whose sum is σ = 10110252444. Its totient is φ = 9912012000.

The previous prime is 10011132169. The next prime is 10011132259. The reversal of 10011132221 is 12223111001.

10011132221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12223111001 = 101 ⋅121020901.

It can be written as a sum of positive squares in 2 ways, for example, as 9763416100 + 247716121 = 98810^2 + 15739^2 .

It is a cyclic number.

It is not a de Polignac number, because 10011132221 - 2¹⁰ = 10011131197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10011132196 and 10011132205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10011132121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49559960 + ... + 49560161.

It is an arithmetic number, because the mean of its divisors is an integer number (2527563111).

Almost surely, 2^10011132221 is an apocalyptic number.

It is an amenable number.

10011132221 is a deficient number, since it is larger than the sum of its proper divisors (99120223).

10011132221 is an equidigital number, since it uses as much as digits as its factorization.

10011132221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99120222.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 10011132221 its reverse (12223111001), we get a palindrome (22234243222).

The spelling of 10011132221 in words is "ten billion, eleven million, one hundred thirty-two thousand, two hundred twenty-one".