12212100020212 has 48 divisors (see below), whose sum is σ = 22335316617600. Its totient is φ = 5831418222080.

The previous prime is 12212100020149. The next prime is 12212100020233. The reversal of 12212100020212 is 21202000121221.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 238813887 + ... + 238865017.

It is an arithmetic number, because the mean of its divisors is an integer number (465319096200).

Almost surely, 2^{12212100020212} is an apocalyptic number.

It is an amenable number.

12212100020212 is a deficient number, since it is larger than the sum of its proper divisors (10123216597388).

12212100020212 is a wasteful number, since it uses less digits than its factorization.

12212100020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55176 (or 55174 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12212100020212 its reverse (21202000121221), we get a palindrome (33414100141433).

The spelling of 12212100020212 in words is "twelve trillion, two hundred twelve billion, one hundred million, twenty thousand, two hundred twelve".