6221051 has 4 divisors (see below), whose sum is σ = 6435600. Its totient is φ = 6006504.

The previous prime is 6221041. The next prime is 6221071. The reversal of 6221051 is 1501226.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1501226 = 2 ⋅750613.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6221051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107231 + ... + 107288.

It is an arithmetic number, because the mean of its divisors is an integer number (1608900).

Almost surely, 2^6221051 is an apocalyptic number.

6221051 is a deficient number, since it is larger than the sum of its proper divisors (214549).

6221051 is a wasteful number, since it uses less digits than its factorization.

6221051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 214548.

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 6221051 is about 2494.2034800713. The cubic root of 6221051 is about 183.9167372966.

Adding to 6221051 its reverse (1501226), we get a palindrome (7722277).

The spelling of 6221051 in words is "six million, two hundred twenty-one thousand, fifty-one".