2221882 has 16 divisors (see below), whose sum is σ = 3630312. Its totient is φ = 1013760.

The previous prime is 2221871. The next prime is 2221889. The reversal of 2221882 is 2881222.

It can be written as a sum of positive squares in 4 ways, for example, as 1100401 + 1121481 = 1049^2 + 1059^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221889) 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, 2082 + ... + 2962.

2^2221882 is an apocalyptic number.

2221882 is a deficient number, since it is larger than the sum of its proper divisors (1408430).

2221882 is a wasteful number, since it uses less digits than its factorization.

2221882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 993.

The product of its digits is 1024, while the sum is 25.

The square root of 2221882 is about 1490.5978666294. The cubic root of 2221882 is about 130.4889280742.

It can be divided in two parts, 22 and 21882, that added together give a square (21904 = 148²).

The spelling of 2221882 in words is "two million, two hundred twenty-one thousand, eight hundred eighty-two".