201020102212212 has 72 divisors (see below), whose sum is σ = 540373843081800. Its totient is φ = 62789736480768.

The previous prime is 201020102212199. The next prime is 201020102212213. The reversal of 201020102212212 is 212212201020102.

It is a happy number.

201020102212212 is a `hidden beast` number, since 20 + 1 + 0 + 201 + 0 + 221 + 221 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 96062658936336 + 104957443275876 = 9801156^2 + 10244874^2 .

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 (201020102212213) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 717030637 + ... + 717310932.

It is an arithmetic number, because the mean of its divisors is an integer number (7505192265025).

Almost surely, 2^{201020102212212} is an apocalyptic number.

It is an amenable number.

201020102212212 is an abundant number, since it is smaller than the sum of its proper divisors (339353740869588).

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

201020102212212 is a wasteful number, since it uses less digits than its factorization.

201020102212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1434341825 (or 1434341820 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 201020102212212 its reverse (212212201020102), we get a palindrome (413232303232314).

It can be divided in two parts, 201020102 and 212212, that multiplied together give a palindrome (42658877885624).

The spelling of 201020102212212 in words is "two hundred one trillion, twenty billion, one hundred two million, two hundred twelve thousand, two hundred twelve".