12122102020212 has 72 divisors (see below), whose sum is σ = 30755095128576. Its totient is φ = 4025786779584.

The previous prime is 12122102020159. The next prime is 12122102020243. The reversal of 12122102020212 is 21202020122121.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144023413 + ... + 144107555.

It is an arithmetic number, because the mean of its divisors is an integer number (427154099008).

Almost surely, 2^{12122102020212} is an apocalyptic number.

12122102020212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12122102020212 is an abundant number, since it is smaller than the sum of its proper divisors (18632993108364).

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

12122102020212 is a wasteful number, since it uses less digits than its factorization.

12122102020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98877 (or 98872 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 12122102020212 its reverse (21202020122121), we get a palindrome (33324122142333).

The spelling of 12122102020212 in words is "twelve trillion, one hundred twenty-two billion, one hundred two million, twenty thousand, two hundred twelve".