201212202122212 has 12 divisors (see below), whose sum is σ = 355607703751356. Its totient is φ = 99610001050400.

The previous prime is 201212202122203. The next prime is 201212202122227. The reversal of 201212202122212 is 212221202212102.

It can be written as a sum of positive squares in 2 ways, for example, as 198965243094016 + 2246959028196 = 14105504^2 + 1498986^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 249025002223 + ... + 249025003030.

It is an arithmetic number, because the mean of its divisors is an integer number (29633975312613).

Almost surely, 2^{201212202122212} is an apocalyptic number.

It is an amenable number.

201212202122212 is a deficient number, since it is larger than the sum of its proper divisors (154395501629144).

201212202122212 is a wasteful number, since it uses less digits than its factorization.

201212202122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498050005358 (or 498050005356 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 201212202122212 its reverse (212221202212102), we get a palindrome (413433404334314).

The spelling of 201212202122212 in words is "two hundred one trillion, two hundred twelve billion, two hundred two million, one hundred twenty-two thousand, two hundred twelve".