31302220200212 has 12 divisors (see below), whose sum is σ = 58992645762036. Its totient is φ = 14447178553920.

The previous prime is 31302220200187. The next prime is 31302220200221. The reversal of 31302220200212 is 21200202220313.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 18802855923076 + 12499364277136 = 4336226^2 + 3535444^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300982886489 + ... + 300982886592.

It is an arithmetic number, because the mean of its divisors is an integer number (4916053813503).

Almost surely, 2^{31302220200212} is an apocalyptic number.

It is an amenable number.

31302220200212 is a deficient number, since it is larger than the sum of its proper divisors (27690425561824).

31302220200212 is a wasteful number, since it uses less digits than its factorization.

31302220200212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601965773098 (or 601965773096 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 31302220200212 its reverse (21200202220313), we get a palindrome (52502422420525).

The spelling of 31302220200212 in words is "thirty-one trillion, three hundred two billion, two hundred twenty million, two hundred thousand, two hundred twelve".