11002221021212 has 24 divisors (see below), whose sum is σ = 20389149283104. Its totient is φ = 5176834906112.

The previous prime is 11002221021203. The next prime is 11002221021277. The reversal of 11002221021212 is 21212012220011.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 10117493 + ... + 11152044.

It is an arithmetic number, because the mean of its divisors is an integer number (849547886796).

Almost surely, 2^{11002221021212} is an apocalyptic number.

It is an amenable number.

11002221021212 is a deficient number, since it is larger than the sum of its proper divisors (9386928261892).

11002221021212 is a wasteful number, since it uses less digits than its factorization.

11002221021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21277165 (or 21277163 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 11002221021212 its reverse (21212012220011), we get a palindrome (32214233241223).

The spelling of 11002221021212 in words is "eleven trillion, two billion, two hundred twenty-one million, twenty-one thousand, two hundred twelve".