11122022220221 has 16 divisors (see below), whose sum is σ = 12430855427328. Its totient is φ = 9864187008000.

The previous prime is 11122022220163. The next prime is 11122022220251. The reversal of 11122022220221 is 12202222022111.

It is a cyclic number.

It is not a de Polignac number, because 11122022220221 - 2³⁴ = 11104842351037 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11122022220193 and 11122022220202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11122022220251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34203380 + ... + 34527021.

It is an arithmetic number, because the mean of its divisors is an integer number (776928464208).

Almost surely, 2^{11122022220221} is an apocalyptic number.

11122022220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11122022220221 is a deficient number, since it is larger than the sum of its proper divisors (1308833207107).

11122022220221 is a wasteful number, since it uses less digits than its factorization.

11122022220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68730772.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11122022220221 its reverse (12202222022111), we get a palindrome (23324244242332).

It can be divided in two parts, 11 and 122022220221, that multiplied together give a palindrome (1342244422431).

The spelling of 11122022220221 in words is "eleven trillion, one hundred twenty-two billion, twenty-two million, two hundred twenty thousand, two hundred twenty-one".