2212311221011 has 4 divisors (see below), whose sum is σ = 2213735762952. Its totient is φ = 2210886679072.

The previous prime is 2212311220981. The next prime is 2212311221023. The reversal of 2212311221011 is 1101221132122.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2212311221011 - 2¹⁹ = 2212310696723 is a prime.

It is a super-2 number, since 2×2212311221011² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2212311221011.

It is not an unprimeable number, because it can be changed into a prime (2212311221711) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 712268641 + ... + 712271746.

It is an arithmetic number, because the mean of its divisors is an integer number (553433940738).

Almost surely, 2^{2212311221011} is an apocalyptic number.

2212311221011 is a deficient number, since it is larger than the sum of its proper divisors (1424541941).

2212311221011 is a wasteful number, since it uses less digits than its factorization.

2212311221011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1424541940.

The product of its (nonzero) digits is 96, while the sum is 19.

Adding to 2212311221011 its reverse (1101221132122), we get a palindrome (3313532353133).

The spelling of 2212311221011 in words is "two trillion, two hundred twelve billion, three hundred eleven million, two hundred twenty-one thousand, eleven".