6222161 has 4 divisors (see below), whose sum is σ = 6787824. Its totient is φ = 5656500.

The previous prime is 6222149. The next prime is 6222163. The reversal of 6222161 is 1612226.

It is a happy number.

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 6222161 - 2¹⁴ = 6205777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6222163) 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, 282815 + ... + 282836.

It is an arithmetic number, because the mean of its divisors is an integer number (1696956).

Almost surely, 2^6222161 is an apocalyptic number.

It is an amenable number.

6222161 is a deficient number, since it is larger than the sum of its proper divisors (565663).

6222161 is a wasteful number, since it uses less digits than its factorization.

6222161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565662.

The product of its digits is 288, while the sum is 20.

The square root of 6222161 is about 2494.4259860737. The cubic root of 6222161 is about 183.9276751825.

Adding to 6222161 its reverse (1612226), we get a palindrome (7834387).

The spelling of 6222161 in words is "six million, two hundred twenty-two thousand, one hundred sixty-one".