2225252220 has 48 divisors (see below), whose sum is σ = 6233189760. Its totient is φ = 593164096.

The previous prime is 2225252189. The next prime is 2225252221. The reversal of 2225252220 is 222525222.

It is a super-2 number, since 2×2225252220² = 9903494885229856800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225252221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 186391 + ... + 197969.

It is an arithmetic number, because the mean of its divisors is an integer number (129858120).

Almost surely, 2^2225252220 is an apocalyptic number.

2225252220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2225252220 is an abundant number, since it is smaller than the sum of its proper divisors (4007937540).

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

2225252220 is a wasteful number, since it uses less digits than its factorization.

2225252220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14794 (or 14792 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 24.

The square root of 2225252220 is about 47172.5791111743. The cubic root of 2225252220 is about 1305.5487130416.

Adding to 2225252220 its reverse (222525222), we get a palindrome (2447777442).

The spelling of 2225252220 in words is "two billion, two hundred twenty-five million, two hundred fifty-two thousand, two hundred twenty".