12101122112212 has 12 divisors (see below), whose sum is σ = 24202244224480. Its totient is φ = 5186195190936.

The previous prime is 12101122112197. The next prime is 12101122112231. The reversal of 12101122112212 is 21221122110121.

It is a happy number.

12101122112212 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101122112212.

It is a congruent number.

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, 216091466262 + ... + 216091466317.

Almost surely, 2^{12101122112212} is an apocalyptic number.

It is an amenable number.

12101122112212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12101122112212 is a wasteful number, since it uses less digits than its factorization.

12101122112212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 432182932590 (or 432182932588 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 19.

Adding to 12101122112212 its reverse (21221122110121), we get a palindrome (33322244222333).

The spelling of 12101122112212 in words is "twelve trillion, one hundred one billion, one hundred twenty-two million, one hundred twelve thousand, two hundred twelve".