2221435 has 4 divisors (see below), whose sum is σ = 2665728. Its totient is φ = 1777144.

The previous prime is 2221433. The next prime is 2221447. The reversal of 2221435 is 5341222.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5341222 = 2 ⋅2670611.

It is a cyclic number.

It is not a de Polignac number, because 2221435 - 2¹ = 2221433 is a prime.

It is a Duffinian number.

2221435 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2221433) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 222139 + ... + 222148.

It is an arithmetic number, because the mean of its divisors is an integer number (666432).

2^2221435 is an apocalyptic number.

2221435 is a deficient number, since it is larger than the sum of its proper divisors (444293).

2221435 is an equidigital number, since it uses as much as digits as its factorization.

2221435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 444292.

The product of its digits is 480, while the sum is 19.

The square root of 2221435 is about 1490.4479192511. The cubic root of 2221435 is about 130.4801768650.

Adding to 2221435 its reverse (5341222), we get a palindrome (7562657).

The spelling of 2221435 in words is "two million, two hundred twenty-one thousand, four hundred thirty-five".