212201210011212 has 36 divisors (see below), whose sum is σ = 536398340186800. Its totient is φ = 70733626283232.

The previous prime is 212201210011199. The next prime is 212201210011223. The reversal of 212201210011212 is 212110012102212.

212201210011212 is a `hidden beast` number, since 21 + 220 + 1 + 210 + 0 + 1 + 1 + 212 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20694414 + ... + 29200362.

Almost surely, 2^{212201210011212} is an apocalyptic number.

It is an amenable number.

212201210011212 is an abundant number, since it is smaller than the sum of its proper divisors (324197130175588).

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

212201210011212 is a wasteful number, since it uses less digits than its factorization.

212201210011212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9198942 (or 9198937 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 212201210011212 its reverse (212110012102212), we get a palindrome (424311222113424).

The spelling of 212201210011212 in words is "two hundred twelve trillion, two hundred one billion, two hundred ten million, eleven thousand, two hundred twelve".