420221066207 has 2 divisors, whose sum is σ = 420221066208. Its totient is φ = 420221066206.

The previous prime is 420221066201. The next prime is 420221066273. The reversal of 420221066207 is 702660122024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420221066207 - 2⁸ = 420221065951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (420221066201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210110533103 + 210110533104.

It is an arithmetic number, because the mean of its divisors is an integer number (210110533104).

Almost surely, 2^420221066207 is an apocalyptic number.

420221066207 is a deficient number, since it is larger than the sum of its proper divisors (1).

420221066207 is an equidigital number, since it uses as much as digits as its factorization.

420221066207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 420221066207 in words is "four hundred twenty billion, two hundred twenty-one million, sixty-six thousand, two hundred seven".