12211000220212 has 24 divisors (see below), whose sum is σ = 21417793495560. Its totient is φ = 6091633359360.

The previous prime is 12211000220203. The next prime is 12211000220231. The reversal of 12211000220212 is 21202200011221.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2025481161636 + 10185519058576 = 1423194^2 + 3191476^2 .

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 7 ways as a sum of consecutive naturals, for example, 17975608 + ... + 18642544.

It is an arithmetic number, because the mean of its divisors is an integer number (892408062315).

Almost surely, 2^{12211000220212} is an apocalyptic number.

It is an amenable number.

12211000220212 is a deficient number, since it is larger than the sum of its proper divisors (9206793275348).

12211000220212 is a wasteful number, since it uses less digits than its factorization.

12211000220212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677331 (or 677329 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 12211000220212 its reverse (21202200011221), we get a palindrome (33413200231433).

The spelling of 12211000220212 in words is "twelve trillion, two hundred eleven billion, two hundred twenty thousand, two hundred twelve".