2210123102221 has 4 divisors (see below), whose sum is σ = 2214516985632. Its totient is φ = 2205729218812.

The previous prime is 2210123102183. The next prime is 2210123102227. The reversal of 2210123102221 is 1222013210122.

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 2210123102221 - 2⁷ = 2210123102093 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2210123102227) 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, 2196940951 + ... + 2196941956.

It is an arithmetic number, because the mean of its divisors is an integer number (553629246408).

Almost surely, 2^{2210123102221} is an apocalyptic number.

It is an amenable number.

2210123102221 is a deficient number, since it is larger than the sum of its proper divisors (4393883411).

2210123102221 is an equidigital number, since it uses as much as digits as its factorization.

2210123102221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4393883410.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 2210123102221 its reverse (1222013210122), we get a palindrome (3432136312343).

It can be divided in two parts, 221012 and 3102221, that added together give a palindrome (3323233).

The spelling of 2210123102221 in words is "two trillion, two hundred ten billion, one hundred twenty-three million, one hundred two thousand, two hundred twenty-one".