20201020212 has 24 divisors (see below), whose sum is σ = 47174038912. Its totient is φ = 6728198400.

The previous prime is 20201020193. The next prime is 20201020237. The reversal of 20201020212 is 21202010202.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 668989 + ... + 698532.

Almost surely, 2^20201020212 is an apocalyptic number.

It is an amenable number.

20201020212 is an abundant number, since it is smaller than the sum of its proper divisors (26973018700).

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

20201020212 is a wasteful number, since it uses less digits than its factorization.

20201020212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1368759 (or 1368757 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20201020212 its reverse (21202010202), we get a palindrome (41403030414).

It can be divided in two parts, 202010 and 20212, that added together give a palindrome (222222).

The spelling of 20201020212 in words is "twenty billion, two hundred one million, twenty thousand, two hundred twelve".