33221125 has 16 divisors (see below), whose sum is σ = 47384064. Its totient is φ = 22779600.

The previous prime is 33221093. The next prime is 33221137. The reversal of 33221125 is 52112233.

It is not a de Polignac number, because 33221125 - 2⁵ = 33221093 is a prime.

It is a super-2 number, since 2×33221125² = 2207286292531250, which contains 22 as substring.

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, 18109 + ... + 19858.

It is an arithmetic number, because the mean of its divisors is an integer number (2961504).

Almost surely, 2^33221125 is an apocalyptic number.

33221125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

33221125 is a deficient number, since it is larger than the sum of its proper divisors (14162939).

33221125 is an equidigital number, since it uses as much as digits as its factorization.

33221125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37989 (or 37979 counting only the distinct ones).

The product of its digits is 360, while the sum is 19.

The square root of 33221125 is about 5763.7769734784. The cubic root of 33221125 is about 321.4682690535.

Adding to 33221125 its reverse (52112233), we get a palindrome (85333358).

The spelling of 33221125 in words is "thirty-three million, two hundred twenty-one thousand, one hundred twenty-five".