2227421 has 4 divisors (see below), whose sum is σ = 2545632. Its totient is φ = 1909212.

The previous prime is 2227417. The next prime is 2227429. The reversal of 2227421 is 1247222.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2227421 - 2² = 2227417 is a prime.

It is a super-2 number, since 2×2227421² = 9922808622482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2227393 and 2227402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2227429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 159095 + ... + 159108.

It is an arithmetic number, because the mean of its divisors is an integer number (636408).

2^2227421 is an apocalyptic number.

It is an amenable number.

2227421 is a deficient number, since it is larger than the sum of its proper divisors (318211).

2227421 is an equidigital number, since it uses as much as digits as its factorization.

2227421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 318210.

The product of its digits is 448, while the sum is 20.

The square root of 2227421 is about 1492.4546894295. The cubic root of 2227421 is about 130.5972714202.

The spelling of 2227421 in words is "two million, two hundred twenty-seven thousand, four hundred twenty-one".