201020031212 has 72 divisors (see below), whose sum is σ = 475905124128. Its totient is φ = 72294900480.

The previous prime is 201020031193. The next prime is 201020031259. The reversal of 201020031212 is 212130020102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2237993 + ... + 2326080.

Almost surely, 2^201020031212 is an apocalyptic number.

201020031212 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

201020031212 is an abundant number, since it is smaller than the sum of its proper divisors (274885092916).

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

201020031212 is a wasteful number, since it uses less digits than its factorization.

201020031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4564119 (or 4564106 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201020031212 its reverse (212130020102), we get a palindrome (413150051314).

The spelling of 201020031212 in words is "two hundred one billion, twenty million, thirty-one thousand, two hundred twelve".