421042616227 has 2 divisors, whose sum is σ = 421042616228. Its totient is φ = 421042616226.

The previous prime is 421042616221. The next prime is 421042616317. The reversal of 421042616227 is 722616240124.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421042616227 is a prime.

It is not a weakly prime, because it can be changed into another prime (421042616221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210521308113 + 210521308114.

It is an arithmetic number, because the mean of its divisors is an integer number (210521308114).

Almost surely, 2^421042616227 is an apocalyptic number.

421042616227 is a deficient number, since it is larger than the sum of its proper divisors (1).

421042616227 is an equidigital number, since it uses as much as digits as its factorization.

421042616227 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 37.

The spelling of 421042616227 in words is "four hundred twenty-one billion, forty-two million, six hundred sixteen thousand, two hundred twenty-seven".