12212621227 has 2 divisors, whose sum is σ = 12212621228. Its totient is φ = 12212621226.

The previous prime is 12212621149. The next prime is 12212621231. The reversal of 12212621227 is 72212621221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212621227 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12212621195 and 12212621204.

It is not a weakly prime, because it can be changed into another prime (12212601227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106310613 + 6106310614.

It is an arithmetic number, because the mean of its divisors is an integer number (6106310614).

Almost surely, 2^12212621227 is an apocalyptic number.

12212621227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12212621227 is an equidigital number, since it uses as much as digits as its factorization.

12212621227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 28.

The spelling of 12212621227 in words is "twelve billion, two hundred twelve million, six hundred twenty-one thousand, two hundred twenty-seven".