221111000010212 has 48 divisors (see below), whose sum is σ = 420171175936512. Its totient is φ = 101206729438080.

The previous prime is 221111000010209. The next prime is 221111000010253. The reversal of 221111000010212 is 212010000111122.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31515788 + ... + 37887555.

It is an arithmetic number, because the mean of its divisors is an integer number (8753566165344).

Almost surely, 2^{221111000010212} is an apocalyptic number.

It is an amenable number.

221111000010212 is a deficient number, since it is larger than the sum of its proper divisors (199060175926300).

221111000010212 is a wasteful number, since it uses less digits than its factorization.

221111000010212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69403868 (or 69403866 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 221111000010212 its reverse (212010000111122), we get a palindrome (433121000121334).

The spelling of 221111000010212 in words is "two hundred twenty-one trillion, one hundred eleven billion, ten thousand, two hundred twelve".