2134221 has 8 divisors (see below), whose sum is σ = 2855424. Its totient is φ = 1417920.

The previous prime is 2134201. The next prime is 2134241. The reversal of 2134221 is 1224312.

It is an interprime number because it is at equal distance from previous prime (2134201) and next prime (2134241).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2134221 - 2⁶ = 2134157 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 1 + 3⁷ + 4³ + 2¹⁵ + 2²¹ + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 2134221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2134201) 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, 45 + ... + 2066.

It is an arithmetic number, because the mean of its divisors is an integer number (356928).

2^2134221 is an apocalyptic number.

It is an amenable number.

2134221 is a deficient number, since it is larger than the sum of its proper divisors (721203).

2134221 is a wasteful number, since it uses less digits than its factorization.

2134221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2451.

The product of its digits is 96, while the sum is 15.

The square root of 2134221 is about 1460.8973269878. The cubic root of 2134221 is about 128.7497703204.

Adding to 2134221 its reverse (1224312), we get a palindrome (3358533).

Subtracting from 2134221 its reverse (1224312), we obtain a palindrome (909909).

The spelling of 2134221 in words is "two million, one hundred thirty-four thousand, two hundred twenty-one".