212201222021212 has 6 divisors (see below), whose sum is σ = 371352138537128. Its totient is φ = 106100611010604.

The previous prime is 212201222021183. The next prime is 212201222021293. The reversal of 212201222021212 is 212120222102212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26525152752648 + ... + 26525152752655.

Almost surely, 2^{212201222021212} is an apocalyptic number.

It is an amenable number.

212201222021212 is a deficient number, since it is larger than the sum of its proper divisors (159150916515916).

212201222021212 is a wasteful number, since it uses less digits than its factorization.

212201222021212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53050305505307 (or 53050305505305 counting only the distinct ones).

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

Adding to 212201222021212 its reverse (212120222102212), we get a palindrome (424321444123424).

The spelling of 212201222021212 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, twenty-one thousand, two hundred twelve".