201020233212 has 144 divisors (see below), whose sum is σ = 539721541632. Its totient is φ = 62973313920.

The previous prime is 201020233177. The next prime is 201020233229. The reversal of 201020233212 is 212332020102.

201020233212 is a `hidden beast` number, since 201 + 0 + 20 + 233 + 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 an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 23243073 + ... + 23251719.

Almost surely, 2^201020233212 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 201020233212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (269860770816).

201020233212 is an abundant number, since it is smaller than the sum of its proper divisors (338701308420).

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

201020233212 is a wasteful number, since it uses less digits than its factorization.

201020233212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9288 (or 9283 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 201020233212 its reverse (212332020102), we get a palindrome (413352253314).

The spelling of 201020233212 in words is "two hundred one billion, twenty million, two hundred thirty-three thousand, two hundred twelve".