211002312221212 has 24 divisors (see below), whose sum is σ = 388690740174800. Its totient is φ = 99947879894016.

The previous prime is 211002312221189. The next prime is 211002312221213. The reversal of 211002312221212 is 212122213200112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211002312221213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5130364 + ... + 21173692.

Almost surely, 2^{211002312221212} is an apocalyptic number.

It is an amenable number.

211002312221212 is a deficient number, since it is larger than the sum of its proper divisors (177688427953588).

211002312221212 is a wasteful number, since it uses less digits than its factorization.

211002312221212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16216405 (or 16216403 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 211002312221212 its reverse (212122213200112), we get a palindrome (423124525421324).

The spelling of 211002312221212 in words is "two hundred eleven trillion, two billion, three hundred twelve million, two hundred twenty-one thousand, two hundred twelve".