211211000012212 has 96 divisors (see below), whose sum is σ = 377284778791200. Its totient is φ = 103441094541312.

The previous prime is 211211000012191. The next prime is 211211000012261. The reversal of 211211000012212 is 212210000112112.

It can be written as a sum of positive squares in 16 ways, for example, as 18484805964816 + 192726194047396 = 4299396^2 + 13882586^2 .

It is a super-2 number, since 2×211211000012212² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64928064778 + ... + 64928068030.

It is an arithmetic number, because the mean of its divisors is an integer number (3930049779075).

Almost surely, 2^{211211000012212} is an apocalyptic number.

It is an amenable number.

211211000012212 is a deficient number, since it is larger than the sum of its proper divisors (166073778778988).

211211000012212 is a wasteful number, since it uses less digits than its factorization.

211211000012212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5845 (or 5843 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 211211000012212 its reverse (212210000112112), we get a palindrome (423421000124324).

The spelling of 211211000012212 in words is "two hundred eleven trillion, two hundred eleven billion, twelve thousand, two hundred twelve".