122011101987 has 16 divisors (see below), whose sum is σ = 167140716960. Its totient is φ = 79112754432.

The previous prime is 122011101977. The next prime is 122011102001. The reversal of 122011101987 is 789101110221.

It is not a de Polignac number, because 122011101987 - 2¹¹ = 122011099939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122011101977) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 94839 + ... + 503007.

It is an arithmetic number, because the mean of its divisors is an integer number (10446294810).

Almost surely, 2^122011101987 is an apocalyptic number.

122011101987 is a deficient number, since it is larger than the sum of its proper divisors (45129614973).

122011101987 is a wasteful number, since it uses less digits than its factorization.

122011101987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 410902.

The product of its (nonzero) digits is 2016, while the sum is 33.

The spelling of 122011101987 in words is "one hundred twenty-two billion, eleven million, one hundred one thousand, nine hundred eighty-seven".