2211111201212 has 24 divisors (see below), whose sum is σ = 4073466084240. Its totient is φ = 1047274220160.

The previous prime is 2211111201199. The next prime is 2211111201217. The reversal of 2211111201212 is 2121021111122.

2211111201212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211111201217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 455123 + ... + 2151594.

It is an arithmetic number, because the mean of its divisors is an integer number (169727753510).

Almost surely, 2^{2211111201212} is an apocalyptic number.

It is an amenable number.

2211111201212 is a deficient number, since it is larger than the sum of its proper divisors (1862354883028).

2211111201212 is a wasteful number, since it uses less digits than its factorization.

2211111201212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2617901 (or 2617899 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 2211111201212 its reverse (2121021111122), we get a palindrome (4332132312334).

The spelling of 2211111201212 in words is "two trillion, two hundred eleven billion, one hundred eleven million, two hundred one thousand, two hundred twelve".