11100002222221 has 32 divisors (see below), whose sum is σ = 12273738554880. Its totient is φ = 9954655838400.

The previous prime is 11100002222219. The next prime is 11100002222249. The reversal of 11100002222221 is 12222220000111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 11100002222221 - 2¹ = 11100002222219 is a prime.

It is a super-2 number, since 2×11100002222221² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11100002222195 and 11100002222204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100002222291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1134152890 + ... + 1134162676.

It is an arithmetic number, because the mean of its divisors is an integer number (383554329840).

Almost surely, 2^{11100002222221} is an apocalyptic number.

11100002222221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11100002222221 is a deficient number, since it is larger than the sum of its proper divisors (1173736332659).

11100002222221 is a wasteful number, since it uses less digits than its factorization.

11100002222221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14505.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11100002222221 its reverse (12222220000111), we get a palindrome (23322222222332).

The spelling of 11100002222221 in words is "eleven trillion, one hundred billion, two million, two hundred twenty-two thousand, two hundred twenty-one".