11112200221021 has 4 divisors (see below), whose sum is σ = 11154451933152. Its totient is φ = 11069948508892.

The previous prime is 11112200221007. The next prime is 11112200221063. The reversal of 11112200221021 is 12012200221111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11112200221021 is a prime.

It is a super-2 number, since 2×11112200221021² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11112200220986 and 11112200221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11112200221121) 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 3 ways as a sum of consecutive naturals, for example, 21125855671 + ... + 21125856196.

It is an arithmetic number, because the mean of its divisors is an integer number (2788612983288).

Almost surely, 2^{11112200221021} is an apocalyptic number.

It is an amenable number.

11112200221021 is a deficient number, since it is larger than the sum of its proper divisors (42251712131).

11112200221021 is an equidigital number, since it uses as much as digits as its factorization.

11112200221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42251712130.

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

Adding to 11112200221021 its reverse (12012200221111), we get a palindrome (23124400442132).

The spelling of 11112200221021 in words is "eleven trillion, one hundred twelve billion, two hundred million, two hundred twenty-one thousand, twenty-one".