11000000928221 has 2 divisors, whose sum is σ = 11000000928222. Its totient is φ = 11000000928220.

The previous prime is 11000000928151. The next prime is 11000000928253. The reversal of 11000000928221 is 12282900000011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9738231736996 + 1261769191225 = 3120614^2 + 1123285^2 .

It is an emirp because it is prime and its reverse (12282900000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11000000928221 - 2⁴² = 6601954417117 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11000000928121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5500000464110 + 5500000464111.

It is an arithmetic number, because the mean of its divisors is an integer number (5500000464111).

Almost surely, 2^{11000000928221} is an apocalyptic number.

It is an amenable number.

11000000928221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11000000928221 is an equidigital number, since it uses as much as digits as its factorization.

11000000928221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 26.

Adding to 11000000928221 its reverse (12282900000011), we get a palindrome (23282900928232).

The spelling of 11000000928221 in words is "eleven trillion, nine hundred twenty-eight thousand, two hundred twenty-one".