2212111334221 has 32 divisors (see below), whose sum is σ = 2304550725120. Its totient is φ = 2121873062400.

The previous prime is 2212111334207. The next prime is 2212111334233. The reversal of 2212111334221 is 1224331112122.

It is a cyclic number.

It is not a de Polignac number, because 2212111334221 - 2⁵ = 2212111334189 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2212111334281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 319804455 + ... + 319811371.

It is an arithmetic number, because the mean of its divisors is an integer number (72017210160).

Almost surely, 2^{2212111334221} is an apocalyptic number.

It is an amenable number.

2212111334221 is a deficient number, since it is larger than the sum of its proper divisors (92439390899).

2212111334221 is a wasteful number, since it uses less digits than its factorization.

2212111334221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7605.

The product of its digits is 1152, while the sum is 25.

Adding to 2212111334221 its reverse (1224331112122), we get a palindrome (3436442446343).

The spelling of 2212111334221 in words is "two trillion, two hundred twelve billion, one hundred eleven million, three hundred thirty-four thousand, two hundred twenty-one".