122012211986 has 64 divisors (see below), whose sum is σ = 230538756096. Its totient is φ = 47278123200.

The previous prime is 122012211983. The next prime is 122012211991. The reversal of 122012211986 is 689112210221.

It is not an unprimeable number, because it can be changed into a prime (122012211983) 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 31 ways as a sum of consecutive naturals, for example, 287096 + ... + 571356.

It is an arithmetic number, because the mean of its divisors is an integer number (3602168064).

Almost surely, 2^122012211986 is an apocalyptic number.

122012211986 is a deficient number, since it is larger than the sum of its proper divisors (108526544110).

122012211986 is a wasteful number, since it uses less digits than its factorization.

122012211986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284367.

The product of its (nonzero) digits is 6912, while the sum is 35.

The spelling of 122012211986 in words is "one hundred twenty-two billion, twelve million, two hundred eleven thousand, nine hundred eighty-six".