11002202202221 has 2 divisors, whose sum is σ = 11002202202222. Its totient is φ = 11002202202220.

The previous prime is 11002202202217. The next prime is 11002202202239. The reversal of 11002202202221 is 12220220220011.

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., 9610713013225 + 1391489188996 = 3100115^2 + 1179614^2 .

It is a cyclic number.

It is not a de Polignac number, because 11002202202221 - 2² = 11002202202217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11002202202221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11007202202221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5501101101110 + 5501101101111.

It is an arithmetic number, because the mean of its divisors is an integer number (5501101101111).

Almost surely, 2^{11002202202221} is an apocalyptic number.

It is an amenable number.

11002202202221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11002202202221 is an equidigital number, since it uses as much as digits as its factorization.

11002202202221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11002202202221 its reverse (12220220220011), we get a palindrome (23222422422232).

The spelling of 11002202202221 in words is "eleven trillion, two billion, two hundred two million, two hundred two thousand, two hundred twenty-one".