2521245222 has 24 divisors (see below), whose sum is σ = 5524080120. Its totient is φ = 830971680.

The previous prime is 2521245217. The next prime is 2521245247. The reversal of 2521245222 is 2225421252.

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 in 11 ways as a sum of consecutive naturals, for example, 785304 + ... + 788507.

It is an arithmetic number, because the mean of its divisors is an integer number (230170005).

Almost surely, 2^2521245222 is an apocalyptic number.

2521245222 is an abundant number, since it is smaller than the sum of its proper divisors (3002834898).

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

2521245222 is a wasteful number, since it uses less digits than its factorization.

2521245222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573908 (or 1573905 counting only the distinct ones).

The product of its digits is 6400, while the sum is 27.

The square root of 2521245222 is about 50212.0027682625. The cubic root of 2521245222 is about 1361.0425292763.

Adding to 2521245222 its reverse (2225421252), we get a palindrome (4746666474).

The spelling of 2521245222 in words is "two billion, five hundred twenty-one million, two hundred forty-five thousand, two hundred twenty-two".