2121227 has 8 divisors (see below), whose sum is σ = 2180400. Its totient is φ = 2062944.

The previous prime is 2121199. The next prime is 2121239. The reversal of 2121227 is 7221212.

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

It is a cyclic number.

It is not a de Polignac number, because 2121227 - 2¹⁰ = 2120203 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121127) 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, 9149 + ... + 9377.

It is an arithmetic number, because the mean of its divisors is an integer number (272550).

2^2121227 is an apocalyptic number.

2121227 is a deficient number, since it is larger than the sum of its proper divisors (59173).

2121227 is a wasteful number, since it uses less digits than its factorization.

2121227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445.

The product of its digits is 112, while the sum is 17.

The square root of 2121227 is about 1456.4432704366. The cubic root of 2121227 is about 128.4879446871.

Adding to 2121227 its reverse (7221212), we get a palindrome (9342439).

The spelling of 2121227 in words is "two million, one hundred twenty-one thousand, two hundred twenty-seven".