2225921 has 8 divisors (see below), whose sum is σ = 2286144. Its totient is φ = 2166640.

The previous prime is 2225887. The next prime is 2225959. The reversal of 2225921 is 1295222.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2225921 - 2¹⁰ = 2224897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2225021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7451 + ... + 7743.

It is an arithmetic number, because the mean of its divisors is an integer number (285768).

2^2225921 is an apocalyptic number.

It is an amenable number.

2225921 is a deficient number, since it is larger than the sum of its proper divisors (60223).

2225921 is a wasteful number, since it uses less digits than its factorization.

2225921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471.

The product of its digits is 720, while the sum is 23.

The square root of 2225921 is about 1491.9520769783. The cubic root of 2225921 is about 130.5679490339.

The spelling of 2225921 in words is "two million, two hundred twenty-five thousand, nine hundred twenty-one".