225320022 has 32 divisors (see below), whose sum is σ = 503499360. Its totient is φ = 74688480.

The previous prime is 225320003. The next prime is 225320033. The reversal of 225320022 is 220023522.

It is a super-2 number, since 2×225320022² = 101538224628160968, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 225319977 and 225320004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1753 + ... + 21300.

It is an arithmetic number, because the mean of its divisors is an integer number (15734355).

Almost surely, 2^225320022 is an apocalyptic number.

225320022 is an abundant number, since it is smaller than the sum of its proper divisors (278179338).

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

225320022 is a wasteful number, since it uses less digits than its factorization.

225320022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23245 (or 23239 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 18.

The square root of 225320022 is about 15010.6636095810. The cubic root of 225320022 is about 608.5084242027.

Adding to 225320022 its reverse (220023522), we get a palindrome (445343544).

The spelling of 225320022 in words is "two hundred twenty-five million, three hundred twenty thousand, twenty-two".