11222021212117 has 2 divisors, whose sum is σ = 11222021212118. Its totient is φ = 11222021212116.

The previous prime is 11222021212079. The next prime is 11222021212151. The reversal of 11222021212117 is 71121212022211.

It is a happy number.

11222021212117 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10171449511441 + 1050571700676 = 3189271^2 + 1024974^2 .

It is a cyclic number.

It is not a de Polignac number, because 11222021212117 - 2¹⁵ = 11222021179349 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11222021212091 and 11222021212100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220021212117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5611010606058 + 5611010606059.

It is an arithmetic number, because the mean of its divisors is an integer number (5611010606059).

Almost surely, 2^{11222021212117} is an apocalyptic number.

It is an amenable number.

11222021212117 is a deficient number, since it is larger than the sum of its proper divisors (1).

11222021212117 is an equidigital number, since it uses as much as digits as its factorization.

11222021212117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 11222021212117 its reverse (71121212022211), we get a palindrome (82343233234328).

The spelling of 11222021212117 in words is "eleven trillion, two hundred twenty-two billion, twenty-one million, two hundred twelve thousand, one hundred seventeen".