421112227 has 2 divisors, whose sum is σ = 421112228. Its totient is φ = 421112226.

The previous prime is 421112213. The next prime is 421112249. The reversal of 421112227 is 722211124.

It is an a-pointer prime, because the next prime (421112249) can be obtained adding 421112227 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-421112227 is a prime.

It is equal to p_22400518 and since 421112227 and 22400518 have the same sum of digits, it is a Honaker prime.

It is a junction number, because it is equal to n+sod(n) for n = 421112198 and 421112207.

It is not a weakly prime, because it can be changed into another prime (421112327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210556113 + 210556114.

It is an arithmetic number, because the mean of its divisors is an integer number (210556114).

Almost surely, 2^421112227 is an apocalyptic number.

421112227 is a deficient number, since it is larger than the sum of its proper divisors (1).

421112227 is an equidigital number, since it uses as much as digits as its factorization.

421112227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 448, while the sum is 22.

The square root of 421112227 is about 20521.0191511046. The cubic root of 421112227 is about 749.5477136746.

The spelling of 421112227 in words is "four hundred twenty-one million, one hundred twelve thousand, two hundred twenty-seven".