212201222120212 has 96 divisors (see below), whose sum is σ = 426060260075520. Its totient is φ = 91661638296960.

The previous prime is 212201222120189. The next prime is 212201222120249. The reversal of 212201222120212 is 212021222102212.

It is a super-2 number, since 2×212201222120212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1875456913 + ... + 1875570055.

It is an arithmetic number, because the mean of its divisors is an integer number (4438127709120).

Almost surely, 2^{212201222120212} is an apocalyptic number.

It is an amenable number.

212201222120212 is an abundant number, since it is smaller than the sum of its proper divisors (213859037955308).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212201222120212 is a wasteful number, since it uses less digits than its factorization.

212201222120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136133 (or 136131 counting only the distinct ones).

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

Adding to 212201222120212 its reverse (212021222102212), we get a palindrome (424222444222424).

The spelling of 212201222120212 in words is "two hundred twelve trillion, two hundred one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred twelve".