6021646121 has 2 divisors, whose sum is σ = 6021646122. Its totient is φ = 6021646120.

The previous prime is 6021646091. The next prime is 6021646129. The reversal of 6021646121 is 1216461206.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3960940096 + 2060706025 = 62936^2 + 45395^2 .

It is a cyclic number.

It is not a de Polignac number, because 6021646121 - 2¹⁴ = 6021629737 is a prime.

It is not a weakly prime, because it can be changed into another prime (6021646129) 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 as a sum of consecutive naturals, namely, 3010823060 + 3010823061.

It is an arithmetic number, because the mean of its divisors is an integer number (3010823061).

Almost surely, 2^6021646121 is an apocalyptic number.

It is an amenable number.

6021646121 is a deficient number, since it is larger than the sum of its proper divisors (1).

6021646121 is an equidigital number, since it uses as much as digits as its factorization.

6021646121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 6021646121 is about 77599.2662400876. The cubic root of 6021646121 is about 1819.3031709256.

The spelling of 6021646121 in words is "six billion, twenty-one million, six hundred forty-six thousand, one hundred twenty-one".