122200111109987 has 2 divisors, whose sum is σ = 122200111109988. Its totient is φ = 122200111109986.

The previous prime is 122200111109971. The next prime is 122200111110043. The reversal of 122200111109987 is 789901111002221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122200111109987 - 2⁴ = 122200111109971 is a prime.

It is a super-2 number, since 2×122200111109987² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122200111009987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61100055554993 + 61100055554994.

It is an arithmetic number, because the mean of its divisors is an integer number (61100055554994).

Almost surely, 2^{122200111109987} is an apocalyptic number.

122200111109987 is a deficient number, since it is larger than the sum of its proper divisors (1).

122200111109987 is an equidigital number, since it uses as much as digits as its factorization.

122200111109987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 44.

The spelling of 122200111109987 in words is "one hundred twenty-two trillion, two hundred billion, one hundred eleven million, one hundred nine thousand, nine hundred eighty-seven".