225420112 has 10 divisors (see below), whose sum is σ = 436751498. Its totient is φ = 112710048.

The previous prime is 225420109. The next prime is 225420137. The reversal of 225420112 is 211024522.

It can be written as a sum of positive squares in only one way, i.e., 146991376 + 78428736 = 12124^2 + 8856^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 225420112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7044363 + ... + 7044394.

Almost surely, 2^225420112 is an apocalyptic number.

It is an amenable number.

225420112 is a deficient number, since it is larger than the sum of its proper divisors (211331386).

225420112 is a wasteful number, since it uses less digits than its factorization.

225420112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14088765 (or 14088759 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 225420112 is about 15013.9972026106. The cubic root of 225420112 is about 608.5985132407.

Adding to 225420112 its reverse (211024522), we get a palindrome (436444634).

It can be divided in two parts, 2254 and 20112, that added together give a triangular number (22366 = T₂₁₁).

The spelling of 225420112 in words is "two hundred twenty-five million, four hundred twenty thousand, one hundred twelve".