2103221210 has 16 divisors (see below), whose sum is σ = 3786322536. Its totient is φ = 841171968.

The previous prime is 2103221171. The next prime is 2103221231. The reversal of 2103221210 is 121223012.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1866153601 + 237067609 = 43199^2 + 15397^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 124214 + ... + 140126.

Almost surely, 2^2103221210 is an apocalyptic number.

2103221210 is a deficient number, since it is larger than the sum of its proper divisors (1683101326).

2103221210 is a wasteful number, since it uses less digits than its factorization.

2103221210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29137.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 2103221210 is about 45860.8897645914. The cubic root of 2103221210 is about 1281.2335946819.

Adding to 2103221210 its reverse (121223012), we get a palindrome (2224444222).

The spelling of 2103221210 in words is "two billion, one hundred three million, two hundred twenty-one thousand, two hundred ten".