212211120210212 has 6 divisors (see below), whose sum is σ = 371369460367878. Its totient is φ = 106105560105104.

The previous prime is 212211120210143. The next prime is 212211120210373. The reversal of 212211120210212 is 212012021112212.

It can be written as a sum of positive squares in only one way, i.e., 203498669967616 + 8712450242596 = 14265296^2 + 2951686^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26526390026273 + ... + 26526390026280.

It is an arithmetic number, because the mean of its divisors is an integer number (61894910061313).

Almost surely, 2^{212211120210212} is an apocalyptic number.

It is an amenable number.

212211120210212 is a deficient number, since it is larger than the sum of its proper divisors (159158340157666).

212211120210212 is a wasteful number, since it uses less digits than its factorization.

212211120210212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53052780052557 (or 53052780052555 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212211120210212 its reverse (212012021112212), we get a palindrome (424223141322424).

The spelling of 212211120210212 in words is "two hundred twelve trillion, two hundred eleven billion, one hundred twenty million, two hundred ten thousand, two hundred twelve".