1212200021027 has 2 divisors, whose sum is σ = 1212200021028. Its totient is φ = 1212200021026.

The previous prime is 1212200020963. The next prime is 1212200021057. The reversal of 1212200021027 is 7201200022121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212200021027 - 2⁶ = 1212200020963 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212200021057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100010513 + 606100010514.

It is an arithmetic number, because the mean of its divisors is an integer number (606100010514).

Almost surely, 2^{1212200021027} is an apocalyptic number.

1212200021027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212200021027 is an equidigital number, since it uses as much as digits as its factorization.

1212200021027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

Adding to 1212200021027 its reverse (7201200022121), we get a palindrome (8413400043148).

The spelling of 1212200021027 in words is "one trillion, two hundred twelve billion, two hundred million, twenty-one thousand, twenty-seven".