2258521212 has 24 divisors (see below), whose sum is σ = 5294864512. Its totient is φ = 749271600.

The previous prime is 2258521201. The next prime is 2258521249. The reversal of 2258521212 is 2121258522.

2258521212 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 2258521212.

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, 443464 + ... + 448527.

Almost surely, 2^2258521212 is an apocalyptic number.

It is an amenable number.

2258521212 is an abundant number, since it is smaller than the sum of its proper divisors (3036343300).

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

2258521212 is a wasteful number, since it uses less digits than its factorization.

2258521212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892209 (or 892207 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

The square root of 2258521212 is about 47523.9014812547. The cubic root of 2258521212 is about 1312.0228275016.

Adding to 2258521212 its reverse (2121258522), we get a palindrome (4379779734).

The spelling of 2258521212 in words is "two billion, two hundred fifty-eight million, five hundred twenty-one thousand, two hundred twelve".