2122121227 has 2 divisors, whose sum is σ = 2122121228. Its totient is φ = 2122121226.

The previous prime is 2122121189. The next prime is 2122121279. The reversal of 2122121227 is 7221212212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2122121227 - 2²³ = 2113732619 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2122121198 and 2122121207.

It is not a weakly prime, because it can be changed into another prime (2122121527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061060613 + 1061060614.

It is an arithmetic number, because the mean of its divisors is an integer number (1061060614).

Almost surely, 2^2122121227 is an apocalyptic number.

2122121227 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122121227 is an equidigital number, since it uses as much as digits as its factorization.

2122121227 is an odious number, because the sum of its binary digits is odd.

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

The square root of 2122121227 is about 46066.4870269049. The cubic root of 2122121227 is about 1285.0599732793.

Adding to 2122121227 its reverse (7221212212), we get a palindrome (9343333439).

The spelling of 2122121227 in words is "two billion, one hundred twenty-two million, one hundred twenty-one thousand, two hundred twenty-seven".