2103221212 has 6 divisors (see below), whose sum is σ = 3680637128. Its totient is φ = 1051610604.

The previous prime is 2103221171. The next prime is 2103221231. The reversal of 2103221212 is 2121223012.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 262902648 + ... + 262902655.

Almost surely, 2^2103221212 is an apocalyptic number.

It is an amenable number.

2103221212 is a deficient number, since it is larger than the sum of its proper divisors (1577415916).

2103221212 is a wasteful number, since it uses less digits than its factorization.

2103221212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 525805307 (or 525805305 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2103221212 is about 45860.8897863964. The cubic root of 2103221212 is about 1281.2335950880.

Adding to 2103221212 its reverse (2121223012), we get a palindrome (4224444224).

The spelling of 2103221212 in words is "two billion, one hundred three million, two hundred twenty-one thousand, two hundred twelve".