122102201987 has 2 divisors, whose sum is σ = 122102201988. Its totient is φ = 122102201986.

The previous prime is 122102201983. The next prime is 122102202031. The reversal of 122102201987 is 789102201221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122102201987 - 2² = 122102201983 is a prime.

It is not a weakly prime, because it can be changed into another prime (122102201983) 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, 61051100993 + 61051100994.

It is an arithmetic number, because the mean of its divisors is an integer number (61051100994).

Almost surely, 2^122102201987 is an apocalyptic number.

122102201987 is a deficient number, since it is larger than the sum of its proper divisors (1).

122102201987 is an equidigital number, since it uses as much as digits as its factorization.

122102201987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 35.

The spelling of 122102201987 in words is "one hundred twenty-two billion, one hundred two million, two hundred one thousand, nine hundred eighty-seven".