2226121 has 4 divisors (see below), whose sum is σ = 2229892. Its totient is φ = 2222352.

The previous prime is 2226089. The next prime is 2226131. The reversal of 2226121 is 1216222.

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 2062096 + 164025 = 1436^2 + 405^2 .

It is a cyclic number.

It is not a de Polignac number, because 2226121 - 2⁵ = 2226089 is a prime.

It is a super-2 number, since 2×2226121² = 9911229413282, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2226095 and 2226104.

It is not an unprimeable number, because it can be changed into a prime (2226131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 786 + ... + 2251.

It is an arithmetic number, because the mean of its divisors is an integer number (557473).

2^2226121 is an apocalyptic number.

It is an amenable number.

2226121 is a deficient number, since it is larger than the sum of its proper divisors (3771).

2226121 is an equidigital number, since it uses as much as digits as its factorization.

2226121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3770.

The product of its digits is 96, while the sum is 16.

The square root of 2226121 is about 1492.0191017544. The cubic root of 2226121 is about 130.5718594464.

The spelling of 2226121 in words is "two million, two hundred twenty-six thousand, one hundred twenty-one".