11021222110221 has 24 divisors (see below), whose sum is σ = 15950749875840. Its totient is φ = 7333086336576.

The previous prime is 11021222110163. The next prime is 11021222110319. The reversal of 11021222110221 is 12201122212011.

11021222110221 is a `hidden beast` number, since 1 + 1 + 0 + 212 + 221 + 10 + 221 = 666.

It is not a de Polignac number, because 11021222110221 - 2¹⁰ = 11021222109197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11021222110194 and 11021222110203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11021222310221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16118620 + ... + 16788458.

It is an arithmetic number, because the mean of its divisors is an integer number (664614578160).

Almost surely, 2^{11021222110221} is an apocalyptic number.

It is an amenable number.

11021222110221 is a deficient number, since it is larger than the sum of its proper divisors (4929527765619).

11021222110221 is a wasteful number, since it uses less digits than its factorization.

11021222110221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673425 (or 673422 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 11021222110221 its reverse (12201122212011), we get a palindrome (23222344322232).

The spelling of 11021222110221 in words is "eleven trillion, twenty-one billion, two hundred twenty-two million, one hundred ten thousand, two hundred twenty-one".