2221141 has 4 divisors (see below), whose sum is σ = 2392012. Its totient is φ = 2050272.

The previous prime is 2221129. The next prime is 2221159. The reversal of 2221141 is 1411222.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1311025 + 910116 = 1145^2 + 954^2 .

It is a cyclic number.

It is not a de Polignac number, because 2221141 - 2¹¹ = 2219093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13), and also a Moran number because the ratio is a prime number: 170857 = 2221141 / (2 + 2 + 2 + 1 + 1 + 4 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2221111) 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, 85416 + ... + 85441.

It is an arithmetic number, because the mean of its divisors is an integer number (598003).

2^2221141 is an apocalyptic number.

It is an amenable number.

2221141 is a deficient number, since it is larger than the sum of its proper divisors (170871).

2221141 is a wasteful number, since it uses less digits than its factorization.

2221141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170870.

The product of its digits is 32, while the sum is 13.

The square root of 2221141 is about 1490.3492879188. The cubic root of 2221141 is about 130.4744203961.

Adding to 2221141 its reverse (1411222), we get a palindrome (3632363).

The spelling of 2221141 in words is "two million, two hundred twenty-one thousand, one hundred forty-one".