212120121021227 has 2 divisors, whose sum is σ = 212120121021228. Its totient is φ = 212120121021226.

The previous prime is 212120121021101. The next prime is 212120121021269. The reversal of 212120121021227 is 722120121021212.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212120121021227 - 2⁸ = 212120121020971 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212120121021196 and 212120121021205.

It is not a weakly prime, because it can be changed into another prime (212120121021527) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106060060510613 + 106060060510614.

It is an arithmetic number, because the mean of its divisors is an integer number (106060060510614).

Almost surely, 2^{212120121021227} is an apocalyptic number.

212120121021227 is a deficient number, since it is larger than the sum of its proper divisors (1).

212120121021227 is an equidigital number, since it uses as much as digits as its factorization.

212120121021227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 896, while the sum is 26.

Adding to 212120121021227 its reverse (722120121021212), we get a palindrome (934240242042439).

The spelling of 212120121021227 in words is "two hundred twelve trillion, one hundred twenty billion, one hundred twenty-one million, twenty-one thousand, two hundred twenty-seven".