33122225 has 24 divisors (see below), whose sum is σ = 43717440. Its totient is φ = 24822720.

The previous prime is 33122209. The next prime is 33122227. The reversal of 33122225 is 52222133.

It is not a de Polignac number, because 33122225 - 2⁴ = 33122209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 33122197 and 33122206.

It is not an unprimeable number, because it can be changed into a prime (33122227) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48587 + ... + 49263.

It is an arithmetic number, because the mean of its divisors is an integer number (1821560).

Almost surely, 2^33122225 is an apocalyptic number.

It is an amenable number.

33122225 is a deficient number, since it is larger than the sum of its proper divisors (10595215).

33122225 is a wasteful number, since it uses less digits than its factorization.

33122225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809 (or 804 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 33122225 is about 5755.1911349668. The cubic root of 33122225 is about 321.1489459944.

Adding to 33122225 its reverse (52222133), we get a palindrome (85344358).

The spelling of 33122225 in words is "thirty-three million, one hundred twenty-two thousand, two hundred twenty-five".