122212100012 has 12 divisors (see below), whose sum is σ = 213874904880. Its totient is φ = 61104984336.

The previous prime is 122212099957. The next prime is 122212100069. The reversal of 122212100012 is 210001212221.

It is a self number, because there is not a number n which added to its sum of digits gives 122212100012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 27689 + ... + 495167.

It is an arithmetic number, because the mean of its divisors is an integer number (17822908740).

Almost surely, 2^122212100012 is an apocalyptic number.

It is an amenable number.

122212100012 is a deficient number, since it is larger than the sum of its proper divisors (91662804868).

122212100012 is a wasteful number, since it uses less digits than its factorization.

122212100012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532840 (or 532838 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 122212100012 its reverse (210001212221), we get a palindrome (332213312233).

It can be divided in two parts, 12221 and 2100012, that multiplied together give a palindrome (25664246652).

The spelling of 122212100012 in words is "one hundred twenty-two billion, two hundred twelve million, one hundred thousand, twelve".