2118229 has 4 divisors (see below), whose sum is σ = 2128480. Its totient is φ = 2107980.

The previous prime is 2118209. The next prime is 2118239. The reversal of 2118229 is 9228112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2118229 - 2¹³ = 2110037 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2118209) 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, 4809 + ... + 5230.

It is an arithmetic number, because the mean of its divisors is an integer number (532120).

2^2118229 is an apocalyptic number.

It is an amenable number.

2118229 is a deficient number, since it is larger than the sum of its proper divisors (10251).

2118229 is a wasteful number, since it uses less digits than its factorization.

2118229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10250.

The product of its digits is 576, while the sum is 25.

The square root of 2118229 is about 1455.4136868946. The cubic root of 2118229 is about 128.4273840656.

The spelling of 2118229 in words is "two million, one hundred eighteen thousand, two hundred twenty-nine".