2103312221 has 8 divisors (see below), whose sum is σ = 2125528704. Its totient is φ = 2081130480.

The previous prime is 2103312209. The next prime is 2103312227. The reversal of 2103312221 is 1222133012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2103312221 - 2⁶ = 2103312157 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2103312221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103312227) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123536 + ... + 139526.

It is an arithmetic number, because the mean of its divisors is an integer number (265691088).

Almost surely, 2^2103312221 is an apocalyptic number.

It is an amenable number.

2103312221 is a deficient number, since it is larger than the sum of its proper divisors (22216483).

2103312221 is a wasteful number, since it uses less digits than its factorization.

2103312221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17371.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2103312221 is about 45861.8820045580. The cubic root of 2103312221 is about 1281.2520750123.

Adding to 2103312221 its reverse (1222133012), we get a palindrome (3325445233).

The spelling of 2103312221 in words is "two billion, one hundred three million, three hundred twelve thousand, two hundred twenty-one".