20002231031212 has 12 divisors (see below), whose sum is σ = 35055608747040. Its totient is φ = 9986342817776.

The previous prime is 20002231031143. The next prime is 20002231031257. The reversal of 20002231031212 is 21213013220002.

It is a self number, because there is not a number n which added to its sum of digits gives 20002231031212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3693171412 + ... + 3693176827.

It is an arithmetic number, because the mean of its divisors is an integer number (2921300728920).

Almost surely, 2^{20002231031212} is an apocalyptic number.

It is an amenable number.

20002231031212 is a deficient number, since it is larger than the sum of its proper divisors (15053377715828).

20002231031212 is a wasteful number, since it uses less digits than its factorization.

20002231031212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7386348920 (or 7386348918 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 20002231031212 its reverse (21213013220002), we get a palindrome (41215244251214).

The spelling of 20002231031212 in words is "twenty trillion, two billion, two hundred thirty-one million, thirty-one thousand, two hundred twelve".