11220202220989 has 2 divisors, whose sum is σ = 11220202220990. Its totient is φ = 11220202220988.

The previous prime is 11220202220881. The next prime is 11220202221029. The reversal of 11220202220989 is 98902220202211.

It is an a-pointer prime, because the next prime (11220202221029) can be obtained adding 11220202220989 to its sum of digits (40).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9378324384025 + 1841877836964 = 3062405^2 + 1357158^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220202220989 - 2⁹ = 11220202220477 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220202220089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610101110494 + 5610101110495.

It is an arithmetic number, because the mean of its divisors is an integer number (5610101110495).

Almost surely, 2^{11220202220989} is an apocalyptic number.

It is an amenable number.

11220202220989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220202220989 is an equidigital number, since it uses as much as digits as its factorization.

11220202220989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 40.

The spelling of 11220202220989 in words is "eleven trillion, two hundred twenty billion, two hundred two million, two hundred twenty thousand, nine hundred eighty-nine".