11112021222209 has 16 divisors (see below), whose sum is σ = 11284399481040. Its totient is φ = 10940974786560.

The previous prime is 11112021222187. The next prime is 11112021222217. The reversal of 11112021222209 is 90222212021111.

It can be written as a sum of positive squares in 8 ways, for example, as 2995807105600 + 8116214116609 = 1730840^2 + 2848897^2 .

It is a cyclic number.

It is not a de Polignac number, because 11112021222209 - 2¹² = 11112021218113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11112021225209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78149039 + ... + 78291099.

It is an arithmetic number, because the mean of its divisors is an integer number (705274967565).

Almost surely, 2^{11112021222209} is an apocalyptic number.

It is an amenable number.

11112021222209 is a deficient number, since it is larger than the sum of its proper divisors (172378258831).

11112021222209 is a wasteful number, since it uses less digits than its factorization.

11112021222209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146740.

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

The spelling of 11112021222209 in words is "eleven trillion, one hundred twelve billion, twenty-one million, two hundred twenty-two thousand, two hundred nine".