6047221421 has 2 divisors, whose sum is σ = 6047221422. Its totient is φ = 6047221420.

The previous prime is 6047221399. The next prime is 6047221423. The reversal of 6047221421 is 1241227406.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6035736100 + 11485321 = 77690^2 + 3389^2 .

It is a cyclic number.

It is not a de Polignac number, because 6047221421 - 2⁶ = 6047221357 is a prime.

Together with 6047221423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6047221423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3023610710 + 3023610711.

It is an arithmetic number, because the mean of its divisors is an integer number (3023610711).

Almost surely, 2^6047221421 is an apocalyptic number.

It is an amenable number.

6047221421 is a deficient number, since it is larger than the sum of its proper divisors (1).

6047221421 is an equidigital number, since it uses as much as digits as its factorization.

6047221421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5376, while the sum is 29.

The square root of 6047221421 is about 77763.8824969536. The cubic root of 6047221421 is about 1821.8751977463.

Adding to 6047221421 its reverse (1241227406), we get a palindrome (7288448827).

The spelling of 6047221421 in words is "six billion, forty-seven million, two hundred twenty-one thousand, four hundred twenty-one".