121222001227 has 2 divisors, whose sum is σ = 121222001228. Its totient is φ = 121222001226.

The previous prime is 121222001209. The next prime is 121222001231. The reversal of 121222001227 is 722100222121.

It is a strong prime.

It is an emirp because it is prime and its reverse (722100222121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121222001227 - 2¹⁹ = 121221476939 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121222001198 and 121222001207.

It is not a weakly prime, because it can be changed into another prime (121222001297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60611000613 + 60611000614.

It is an arithmetic number, because the mean of its divisors is an integer number (60611000614).

Almost surely, 2^121222001227 is an apocalyptic number.

121222001227 is a deficient number, since it is larger than the sum of its proper divisors (1).

121222001227 is an equidigital number, since it uses as much as digits as its factorization.

121222001227 is an odious number, because the sum of its binary digits is odd.

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

Adding to 121222001227 its reverse (722100222121), we get a palindrome (843322223348).

The spelling of 121222001227 in words is "one hundred twenty-one billion, two hundred twenty-two million, one thousand, two hundred twenty-seven".