212001112201212 has 144 divisors (see below), whose sum is σ = 577592191496320. Its totient is φ = 65348070883200.

The previous prime is 212001112201199. The next prime is 212001112201213. The reversal of 212001112201212 is 212102211100212.

212001112201212 is a `hidden beast` number, since 2 + 120 + 0 + 111 + 220 + 1 + 212 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212001112201213) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 42675762 + ... + 47383782.

Almost surely, 2^{212001112201212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 212001112201212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (288796095748160).

212001112201212 is an abundant number, since it is smaller than the sum of its proper divisors (365591079295108).

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

212001112201212 is a wasteful number, since it uses less digits than its factorization.

212001112201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4709624 (or 4709619 counting only the distinct ones).

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

Adding to 212001112201212 its reverse (212102211100212), we get a palindrome (424103323301424).

The spelling of 212001112201212 in words is "two hundred twelve trillion, one billion, one hundred twelve million, two hundred one thousand, two hundred twelve".