1212200219987 has 2 divisors, whose sum is σ = 1212200219988. Its totient is φ = 1212200219986.

The previous prime is 1212200219977. The next prime is 1212200220017. The reversal of 1212200219987 is 7899120022121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212200219987 - 2³⁸ = 937322313043 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212200219917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606100109993 + 606100109994.

It is an arithmetic number, because the mean of its divisors is an integer number (606100109994).

Almost surely, 2^{1212200219987} is an apocalyptic number.

1212200219987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212200219987 is an equidigital number, since it uses as much as digits as its factorization.

1212200219987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 44.

The spelling of 1212200219987 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred nineteen thousand, nine hundred eighty-seven".