212120211222212 has 12 divisors (see below), whose sum is σ = 371210663873196. Its totient is φ = 106060021544160.

The previous prime is 212120211222209. The next prime is 212120211222253. The reversal of 212120211222212 is 212222112021212.

212120211222212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 87537467973316 + 124582743248896 = 9356146^2 + 11161664^2 .

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, 15158003 + ... + 25573530.

It is an arithmetic number, because the mean of its divisors is an integer number (30934221989433).

Almost surely, 2^{212120211222212} is an apocalyptic number.

It is an amenable number.

212120211222212 is a deficient number, since it is larger than the sum of its proper divisors (159090452650984).

212120211222212 is a wasteful number, since it uses less digits than its factorization.

212120211222212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42033478 (or 42033476 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 23.

Adding to 212120211222212 its reverse (212222112021212), we get a palindrome (424342323243424).

The spelling of 212120211222212 in words is "two hundred twelve trillion, one hundred twenty billion, two hundred eleven million, two hundred twenty-two thousand, two hundred twelve".