12222020212 has 24 divisors (see below), whose sum is σ = 21447986112. Its totient is φ = 6094046400.

The previous prime is 12222020203. The next prime is 12222020221. The reversal of 12222020212 is 21202022221.

It is an interprime number because it is at equal distance from previous prime (12222020203) and next prime (12222020221).

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 7 ways as a sum of consecutive naturals, for example, 3814203 + ... + 3817405.

It is an arithmetic number, because the mean of its divisors is an integer number (893666088).

Almost surely, 2^12222020212 is an apocalyptic number.

It is an amenable number.

12222020212 is a deficient number, since it is larger than the sum of its proper divisors (9225965900).

12222020212 is a wasteful number, since it uses less digits than its factorization.

12222020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5559 (or 5557 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 12222020212 its reverse (21202022221), we get a palindrome (33424042433).

The spelling of 12222020212 in words is "twelve billion, two hundred twenty-two million, twenty thousand, two hundred twelve".