11221122202009 has 2 divisors, whose sum is σ = 11221122202010. Its totient is φ = 11221122202008.

The previous prime is 11221122201979. The next prime is 11221122202061. The reversal of 11221122202009 is 90020222112211.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10849513699600 + 371608502409 = 3293860^2 + 609597^2 .

It is a cyclic number.

It is not a de Polignac number, because 11221122202009 - 2³⁹ = 10671366388121 is a prime.

It is a super-3 number, since 3×11221122202009³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11221122202099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610561101004 + 5610561101005.

It is an arithmetic number, because the mean of its divisors is an integer number (5610561101005).

Almost surely, 2^{11221122202009} is an apocalyptic number.

It is an amenable number.

11221122202009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11221122202009 is an equidigital number, since it uses as much as digits as its factorization.

11221122202009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 11221122202009 in words is "eleven trillion, two hundred twenty-one billion, one hundred twenty-two million, two hundred two thousand, nine".