11002221222 has 32 divisors (see below), whose sum is σ = 22728330240. Its totient is φ = 3546905760.

The previous prime is 11002221193. The next prime is 11002221229. The reversal of 11002221222 is 22212220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11002221229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 297429 + ... + 332367.

It is an arithmetic number, because the mean of its divisors is an integer number (710260320).

Almost surely, 2^11002221222 is an apocalyptic number.

11002221222 is an abundant number, since it is smaller than the sum of its proper divisors (11726109018).

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

11002221222 is a wasteful number, since it uses less digits than its factorization.

11002221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36668.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 11002221222 its reverse (22212220011), we get a palindrome (33214441233).

The spelling of 11002221222 in words is "eleven billion, two million, two hundred twenty-one thousand, two hundred twenty-two".