11002222121022 has 128 divisors (see below), whose sum is σ = 26752203072000. Its totient is φ = 3323994589440.

The previous prime is 11002222120991. The next prime is 11002222121057. The reversal of 11002222121022 is 22012122220011.

It is a happy number.

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 = 11002222120986 and 11002222121004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 759342754 + ... + 759357242.

It is an arithmetic number, because the mean of its divisors is an integer number (209001586500).

Almost surely, 2^{11002222121022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11002222121022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13376101536000).

11002222121022 is an abundant number, since it is smaller than the sum of its proper divisors (15749980950978).

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

11002222121022 is a wasteful number, since it uses less digits than its factorization.

11002222121022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18263 (or 18257 counting only the distinct ones).

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

Adding to 11002222121022 its reverse (22012122220011), we get a palindrome (33014344341033).

The spelling of 11002222121022 in words is "eleven trillion, two billion, two hundred twenty-two million, one hundred twenty-one thousand, twenty-two".