2102220223 has 4 divisors (see below), whose sum is σ = 2102855040. Its totient is φ = 2101585408.

The previous prime is 2102220203. The next prime is 2102220227. The reversal of 2102220223 is 3220222012.

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

It is a cyclic number.

It is not a de Polignac number, because 2102220223 - 2⁵ = 2102220191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102220197 and 2102220206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102220227) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312415 + ... + 319072.

It is an arithmetic number, because the mean of its divisors is an integer number (525713760).

Almost surely, 2^2102220223 is an apocalyptic number.

2102220223 is a deficient number, since it is larger than the sum of its proper divisors (634817).

2102220223 is an equidigital number, since it uses as much as digits as its factorization.

2102220223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 634816.

The product of its (nonzero) digits is 192, while the sum is 16.

The square root of 2102220223 is about 45849.9751690227. The cubic root of 2102220223 is about 1281.0303030706.

Adding to 2102220223 its reverse (3220222012), we get a palindrome (5322442235).

It can be divided in two parts, 21022202 and 23, that added together give a square (21022225 = 4585²).

The spelling of 2102220223 in words is "two billion, one hundred two million, two hundred twenty thousand, two hundred twenty-three".