2221559 has 8 divisors (see below), whose sum is σ = 2291520. Its totient is φ = 2152800.

The previous prime is 2221523. The next prime is 2221567. The reversal of 2221559 is 9551222.

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 2221559 - 2¹⁶ = 2156023 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221589) 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, 4589 + ... + 5049.

It is an arithmetic number, because the mean of its divisors is an integer number (286440).

2^2221559 is an apocalyptic number.

2221559 is a deficient number, since it is larger than the sum of its proper divisors (69961).

2221559 is an equidigital number, since it uses as much as digits as its factorization.

2221559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 601.

The product of its digits is 1800, while the sum is 26.

The square root of 2221559 is about 1490.4895169038. The cubic root of 2221559 is about 130.4826046112.

The spelling of 2221559 in words is "two million, two hundred twenty-one thousand, five hundred fifty-nine".