1212842227 has 2 divisors, whose sum is σ = 1212842228. Its totient is φ = 1212842226.

The previous prime is 1212842209. The next prime is 1212842251. The reversal of 1212842227 is 7222482121.

It is a weak prime.

It is an emirp because it is prime and its reverse (7222482121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212842227 - 2²⁷ = 1078624499 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212842297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606421113 + 606421114.

It is an arithmetic number, because the mean of its divisors is an integer number (606421114).

Almost surely, 2^1212842227 is an apocalyptic number.

1212842227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212842227 is an equidigital number, since it uses as much as digits as its factorization.

1212842227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7168, while the sum is 31.

The square root of 1212842227 is about 34825.8844395946. The cubic root of 1212842227 is about 1066.4359323952.

The spelling of 1212842227 in words is "one billion, two hundred twelve million, eight hundred forty-two thousand, two hundred twenty-seven".