11000102022221 has 4 divisors (see below), whose sum is σ = 11846263716252. Its totient is φ = 10153940328192.

The previous prime is 11000102022211. The next prime is 11000102022241. The reversal of 11000102022221 is 12222020100011.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7398476160196 + 3601625862025 = 2720014^2 + 1897795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11000102022221 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11000102022196 and 11000102022205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11000102022211) 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 3 ways as a sum of consecutive naturals, for example, 423080846996 + ... + 423080847021.

It is an arithmetic number, because the mean of its divisors is an integer number (2961565929063).

Almost surely, 2^{11000102022221} is an apocalyptic number.

It is an amenable number.

11000102022221 is a deficient number, since it is larger than the sum of its proper divisors (846161694031).

11000102022221 is an equidigital number, since it uses as much as digits as its factorization.

11000102022221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 846161694030.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11000102022221 its reverse (12222020100011), we get a palindrome (23222122122232).

The spelling of 11000102022221 in words is "eleven trillion, one hundred two million, twenty-two thousand, two hundred twenty-one".