2221135 has 16 divisors (see below), whose sum is σ = 3226176. Its totient is φ = 1433088.

The previous prime is 2221129. The next prime is 2221159. The reversal of 2221135 is 5311222.

2221135 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 2221135 - 2³ = 2221127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1272 + ... + 2461.

It is an arithmetic number, because the mean of its divisors is an integer number (201636).

2^2221135 is an apocalyptic number.

2221135 is a deficient number, since it is larger than the sum of its proper divisors (1005041).

2221135 is a wasteful number, since it uses less digits than its factorization.

2221135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3762.

The product of its digits is 120, while the sum is 16.

The square root of 2221135 is about 1490.3472749665. The cubic root of 2221135 is about 130.4743029119.

Adding to 2221135 its reverse (5311222), we get a palindrome (7532357).

It can be divided in two parts, 2 and 221135, that multiplied together give a triangular number (442270 = T₉₄₀).

The spelling of 2221135 in words is "two million, two hundred twenty-one thousand, one hundred thirty-five".