2220100002221 has 4 divisors (see below), whose sum is σ = 2220494832672. Its totient is φ = 2219705171772.

The previous prime is 2220100002199. The next prime is 2220100002227. The reversal of 2220100002221 is 1222000010222.

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 not a de Polignac number, because 2220100002221 - 2¹⁸ = 2220099740077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2220100002196 and 2220100002205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2220100002227) 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, 197406791 + ... + 197418036.

It is an arithmetic number, because the mean of its divisors is an integer number (555123708168).

Almost surely, 2^{2220100002221} is an apocalyptic number.

It is an amenable number.

2220100002221 is a deficient number, since it is larger than the sum of its proper divisors (394830451).

2220100002221 is an equidigital number, since it uses as much as digits as its factorization.

2220100002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394830450.

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 2220100002221 its reverse (1222000010222), we get a palindrome (3442100012443).

The spelling of 2220100002221 in words is "two trillion, two hundred twenty billion, one hundred million, two thousand, two hundred twenty-one".