11100000002221 has 8 divisors (see below), whose sum is σ = 12072201070104. Its totient is φ = 10144706779200.

The previous prime is 11100000002219. The next prime is 11100000002233. The reversal of 11100000002221 is 12220000000111.

It can be written as a sum of positive squares in 4 ways, for example, as 4592470430025 + 6507529572196 = 2143005^2 + 2550986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11100000002221 - 2¹ = 11100000002219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11100000002198 and 11100000002207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11100000003221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4226959846 + ... + 4226962471.

It is an arithmetic number, because the mean of its divisors is an integer number (1509025133763).

Almost surely, 2^{11100000002221} is an apocalyptic number.

It is an amenable number.

11100000002221 is a deficient number, since it is larger than the sum of its proper divisors (972201067883).

11100000002221 is a wasteful number, since it uses less digits than its factorization.

11100000002221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8453922431.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 11100000002221 its reverse (12220000000111), we get a palindrome (23320000002332).

The spelling of 11100000002221 in words is "eleven trillion, one hundred billion, two thousand, two hundred twenty-one".