11112100220221 has 48 divisors (see below), whose sum is σ = 15035138870400. Its totient is φ = 7974914088960.

The previous prime is 11112100220219. The next prime is 11112100220233. The reversal of 11112100220221 is 12202200121111.

It is not a de Polignac number, because 11112100220221 - 2¹ = 11112100220219 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11112100220195 and 11112100220204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112100220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4891921 + ... + 6793753.

It is an arithmetic number, because the mean of its divisors is an integer number (313232059800).

Almost surely, 2^{11112100220221} is an apocalyptic number.

11112100220221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11112100220221 is a deficient number, since it is larger than the sum of its proper divisors (3923038650179).

11112100220221 is a wasteful number, since it uses less digits than its factorization.

11112100220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902326 (or 1902313 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 11112100220221 its reverse (12202200121111), we get a palindrome (23314300341332).

The spelling of 11112100220221 in words is "eleven trillion, one hundred twelve billion, one hundred million, two hundred twenty thousand, two hundred twenty-one".