22012212120212 has 6 divisors (see below), whose sum is σ = 38521371210378. Its totient is φ = 11006106060104.

The previous prime is 22012212120203. The next prime is 22012212120251. The reversal of 22012212120212 is 21202121221022.

It can be written as a sum of positive squares in only one way, i.e., 11108915664016 + 10903296456196 = 3333004^2 + 3302014^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2751526515023 + ... + 2751526515030.

It is an arithmetic number, because the mean of its divisors is an integer number (6420228535063).

Almost surely, 2^{22012212120212} is an apocalyptic number.

It is an amenable number.

22012212120212 is a deficient number, since it is larger than the sum of its proper divisors (16509159090166).

22012212120212 is a wasteful number, since it uses less digits than its factorization.

22012212120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5503053030057 (or 5503053030055 counting only the distinct ones).

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

Adding to 22012212120212 its reverse (21202121221022), we get a palindrome (43214333341234).

The spelling of 22012212120212 in words is "twenty-two trillion, twelve billion, two hundred twelve million, one hundred twenty thousand, two hundred twelve".