1021212112027 has 2 divisors, whose sum is σ = 1021212112028. Its totient is φ = 1021212112026.

The previous prime is 1021212112009. The next prime is 1021212112057. The reversal of 1021212112027 is 7202112121201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1021212112027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1021212111989 and 1021212112007.

It is not a weakly prime, because it can be changed into another prime (1021212112057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510606056013 + 510606056014.

It is an arithmetic number, because the mean of its divisors is an integer number (510606056014).

Almost surely, 2^{1021212112027} is an apocalyptic number.

1021212112027 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021212112027 is an equidigital number, since it uses as much as digits as its factorization.

1021212112027 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 22.

Adding to 1021212112027 its reverse (7202112121201), we get a palindrome (8223324233228).

The spelling of 1021212112027 in words is "one trillion, twenty-one billion, two hundred twelve million, one hundred twelve thousand, twenty-seven".