6204445021 has 2 divisors, whose sum is σ = 6204445022. Its totient is φ = 6204445020.

The previous prime is 6204444959. The next prime is 6204445097. The reversal of 6204445021 is 1205444026.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6187552921 + 16892100 = 78661^2 + 4110^2 .

It is a cyclic number.

It is not a de Polignac number, because 6204445021 - 2¹⁷ = 6204313949 is a prime.

It is a super-2 number, since 2×6204445021² = 76990276037223380882, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6204445321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3102222510 + 3102222511.

It is an arithmetic number, because the mean of its divisors is an integer number (3102222511).

Almost surely, 2^6204445021 is an apocalyptic number.

It is an amenable number.

6204445021 is a deficient number, since it is larger than the sum of its proper divisors (1).

6204445021 is an equidigital number, since it uses as much as digits as its factorization.

6204445021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7680, while the sum is 28.

The square root of 6204445021 is about 78768.2995944434. The cubic root of 6204445021 is about 1837.5294723457.

Adding to 6204445021 its reverse (1205444026), we get a palindrome (7409889047).

The spelling of 6204445021 in words is "six billion, two hundred four million, four hundred forty-five thousand, twenty-one".