1214212486889 has 2 divisors, whose sum is σ = 1214212486890. Its totient is φ = 1214212486888.

The previous prime is 1214212486801. The next prime is 1214212486939. The reversal of 1214212486889 is 9886842124121.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1111759360000 + 102453126889 = 1054400^2 + 320083^2 .

It is a cyclic number.

It is not a de Polignac number, because 1214212486889 - 2⁸ = 1214212486633 is a prime.

It is not a weakly prime, because it can be changed into another prime (1214214486889) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607106243444 + 607106243445.

It is an arithmetic number, because the mean of its divisors is an integer number (607106243445).

Almost surely, 2^{1214212486889} is an apocalyptic number.

It is an amenable number.

1214212486889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1214212486889 is an equidigital number, since it uses as much as digits as its factorization.

1214212486889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3538944, while the sum is 56.

The spelling of 1214212486889 in words is "one trillion, two hundred fourteen billion, two hundred twelve million, four hundred eighty-six thousand, eight hundred eighty-nine".