4245121212 has 24 divisors (see below), whose sum is σ = 9930757200. Its totient is φ = 1411401216.

The previous prime is 4245121159. The next prime is 4245121253. The reversal of 4245121212 is 2121215424.

It is a congruent number.

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, 450037 + ... + 459372.

It is an arithmetic number, because the mean of its divisors is an integer number (413781550).

Almost surely, 2^4245121212 is an apocalyptic number.

It is an amenable number.

4245121212 is an abundant number, since it is smaller than the sum of its proper divisors (5685635988).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

4245121212 is a wasteful number, since it uses less digits than its factorization.

4245121212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 909805 (or 909803 counting only the distinct ones).

The product of its digits is 1280, while the sum is 24.

The square root of 4245121212 is about 65154.5947113479. The cubic root of 4245121212 is about 1619.1858445223.

Adding to 4245121212 its reverse (2121215424), we get a palindrome (6366336636).

The spelling of 4245121212 in words is "four billion, two hundred forty-five million, one hundred twenty-one thousand, two hundred twelve".