6221901 has 16 divisors (see below), whose sum is σ = 9590400. Its totient is φ = 3514368.

The previous prime is 6221879. The next prime is 6221909. The reversal of 6221901 is 1091226.

6221901 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6221901 - 2⁵ = 6221869 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

6221901 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6221909) 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 15 ways as a sum of consecutive naturals, for example, 205 + ... + 3533.

It is an arithmetic number, because the mean of its divisors is an integer number (599400).

Almost surely, 2^6221901 is an apocalyptic number.

It is an amenable number.

6221901 is a deficient number, since it is larger than the sum of its proper divisors (3368499).

6221901 is a wasteful number, since it uses less digits than its factorization.

6221901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3428.

The product of its (nonzero) digits is 216, while the sum is 21.

The square root of 6221901 is about 2494.3738693307. The cubic root of 6221901 is about 183.9251132718.

The spelling of 6221901 in words is "six million, two hundred twenty-one thousand, nine hundred one".