1122120199987 has 2 divisors, whose sum is σ = 1122120199988. Its totient is φ = 1122120199986.

The previous prime is 1122120199973. The next prime is 1122120200023. The reversal of 1122120199987 is 7899910212211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1122120199987 - 2³¹ = 1119972716339 is a prime.

It is not a weakly prime, because it can be changed into another prime (1122120499987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561060099993 + 561060099994.

It is an arithmetic number, because the mean of its divisors is an integer number (561060099994).

Almost surely, 2^{1122120199987} is an apocalyptic number.

1122120199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1122120199987 is an equidigital number, since it uses as much as digits as its factorization.

1122120199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 326592, while the sum is 52.

The spelling of 1122120199987 in words is "one trillion, one hundred twenty-two billion, one hundred twenty million, one hundred ninety-nine thousand, nine hundred eighty-seven".