2225421 has 32 divisors (see below), whose sum is σ = 3686400. Its totient is φ = 1315440.

The previous prime is 2225407. The next prime is 2225429. The reversal of 2225421 is 1245222.

2225421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2225421 - 2⁵ = 2225389 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2225394 and 2225403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2225429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17460 + ... + 17586.

It is an arithmetic number, because the mean of its divisors is an integer number (115200).

2^2225421 is an apocalyptic number.

It is an amenable number.

2225421 is a deficient number, since it is larger than the sum of its proper divisors (1460979).

2225421 is a wasteful number, since it uses less digits than its factorization.

2225421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206 (or 200 counting only the distinct ones).

The product of its digits is 320, while the sum is 18.

The square root of 2225421 is about 1491.7845018635. The cubic root of 2225421 is about 130.5581719778.

The spelling of 2225421 in words is "two million, two hundred twenty-five thousand, four hundred twenty-one".