2212033043221 has 2 divisors, whose sum is σ = 2212033043222. Its totient is φ = 2212033043220.

The previous prime is 2212033043219. The next prime is 2212033043257. The reversal of 2212033043221 is 1223403302122.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2207123238321 + 4909804900 = 1485639^2 + 70070^2 .

It is a cyclic number.

It is not a de Polignac number, because 2212033043221 - 2¹ = 2212033043219 is a prime.

It is a super-3 number, since 3×2212033043221³ (a number of 38 digits) contains 333 as substring.

Together with 2212033043219, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2212033043021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1106016521610 + 1106016521611.

It is an arithmetic number, because the mean of its divisors is an integer number (1106016521611).

Almost surely, 2^{2212033043221} is an apocalyptic number.

It is an amenable number.

2212033043221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2212033043221 is an equidigital number, since it uses as much as digits as its factorization.

2212033043221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 2212033043221 its reverse (1223403302122), we get a palindrome (3435436345343).

The spelling of 2212033043221 in words is "two trillion, two hundred twelve billion, thirty-three million, forty-three thousand, two hundred twenty-one".