2212489 has 4 divisors (see below), whose sum is σ = 2272324. Its totient is φ = 2152656.

The previous prime is 2212487. The next prime is 2212519. The reversal of 2212489 is 9842122.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9842122 = 2 ⋅4921061.

It can be written as a sum of positive squares in 2 ways, for example, as 1776889 + 435600 = 1333^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212489 - 2¹ = 2212487 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2212487) 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, 29862 + ... + 29935.

It is an arithmetic number, because the mean of its divisors is an integer number (568081).

2^2212489 is an apocalyptic number.

It is an amenable number.

2212489 is a deficient number, since it is larger than the sum of its proper divisors (59835).

2212489 is an equidigital number, since it uses as much as digits as its factorization.

2212489 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59834.

The product of its digits is 2304, while the sum is 28.

The square root of 2212489 is about 1487.4437804502. The cubic root of 2212489 is about 130.3047878185.

It can be divided in two parts, 2212 and 489, that added together give a triangular number (2701 = T₇₃).

The spelling of 2212489 in words is "two million, two hundred twelve thousand, four hundred eighty-nine".