11002221201222 has 48 divisors (see below), whose sum is σ = 23991771746592. Its totient is φ = 3643775815680.

The previous prime is 11002221201143. The next prime is 11002221201227. The reversal of 11002221201222 is 22210212220011.

It is a happy number.

11002221201222 is a `hidden beast` number, since 1 + 100 + 222 + 120 + 1 + 222 = 666.

It is a super-2 number, since 2×11002221201222² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11002221201195 and 11002221201204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002221201227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39654663 + ... + 39931149.

It is an arithmetic number, because the mean of its divisors is an integer number (499828578054).

Almost surely, 2^{11002221201222} is an apocalyptic number.

11002221201222 is an abundant number, since it is smaller than the sum of its proper divisors (12989550545370).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11002221201222 is a wasteful number, since it uses less digits than its factorization.

11002221201222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290733 (or 290730 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 11002221201222 its reverse (22210212220011), we get a palindrome (33212433421233).

The spelling of 11002221201222 in words is "eleven trillion, two billion, two hundred twenty-one million, two hundred one thousand, two hundred twenty-two".