225220144 has 10 divisors (see below), whose sum is σ = 436364060. Its totient is φ = 112610064.

The previous prime is 225220141. The next prime is 225220189. The reversal of 225220144 is 441022522.

225220144 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×225220144² = 101448226526761472, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (225220141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7038114 + ... + 7038145.

It is an arithmetic number, because the mean of its divisors is an integer number (43636406).

Almost surely, 2^225220144 is an apocalyptic number.

It is an amenable number.

225220144 is a deficient number, since it is larger than the sum of its proper divisors (211143916).

225220144 is a wasteful number, since it uses less digits than its factorization.

225220144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14076267 (or 14076261 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 22.

The square root of 225220144 is about 15007.3363392709. The cubic root of 225220144 is about 608.4184993834.

Adding to 225220144 its reverse (441022522), we get a palindrome (666242666).

The spelling of 225220144 in words is "two hundred twenty-five million, two hundred twenty thousand, one hundred forty-four".