2211111330212 has 6 divisors (see below), whose sum is σ = 3869444827878. Its totient is φ = 1105555665104.

The previous prime is 2211111330209. The next prime is 2211111330251. The reversal of 2211111330212 is 2120331111122.

It can be written as a sum of positive squares in only one way, i.e., 2103642755236 + 107468574976 = 1450394^2 + 327824^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 276388916273 + ... + 276388916280.

It is an arithmetic number, because the mean of its divisors is an integer number (644907471313).

Almost surely, 2^{2211111330212} is an apocalyptic number.

It is an amenable number.

2211111330212 is a deficient number, since it is larger than the sum of its proper divisors (1658333497666).

2211111330212 is a wasteful number, since it uses less digits than its factorization.

2211111330212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552777832557 (or 552777832555 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 2211111330212 its reverse (2120331111122), we get a palindrome (4331442441334).

The spelling of 2211111330212 in words is "two trillion, two hundred eleven billion, one hundred eleven million, three hundred thirty thousand, two hundred twelve".