12212012220212 has 72 divisors (see below), whose sum is σ = 24933500424000. Its totient is φ = 5218303499136.

The previous prime is 12212012220061. The next prime is 12212012220241. The reversal of 12212012220212 is 21202221021221.

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, 92330864 + ... + 92463032.

It is an arithmetic number, because the mean of its divisors is an integer number (346298617000).

Almost surely, 2^{12212012220212} is an apocalyptic number.

It is an amenable number.

12212012220212 is an abundant number, since it is smaller than the sum of its proper divisors (12721488203788).

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

12212012220212 is a wasteful number, since it uses less digits than its factorization.

12212012220212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133573 (or 133564 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 12212012220212 its reverse (21202221021221), we get a palindrome (33414233241433).

The spelling of 12212012220212 in words is "twelve trillion, two hundred twelve billion, twelve million, two hundred twenty thousand, two hundred twelve".