2221103310121 has 4 divisors (see below), whose sum is σ = 2242667420032. Its totient is φ = 2199539200212.

The previous prime is 2221103310109. The next prime is 2221103310131. The reversal of 2221103310121 is 1210133011222.

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 2221103310121 - 2¹⁷ = 2221103179049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2221103310131) 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, 10782054801 + ... + 10782055006.

It is an arithmetic number, because the mean of its divisors is an integer number (560666855008).

Almost surely, 2^{2221103310121} is an apocalyptic number.

It is an amenable number.

2221103310121 is a deficient number, since it is larger than the sum of its proper divisors (21564109911).

2221103310121 is a wasteful number, since it uses less digits than its factorization.

2221103310121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21564109910.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2221103310121 its reverse (1210133011222), we get a palindrome (3431236321343).

The spelling of 2221103310121 in words is "two trillion, two hundred twenty-one billion, one hundred three million, three hundred ten thousand, one hundred twenty-one".