2222012210221 has 4 divisors (see below), whose sum is σ = 2222079149344. Its totient is φ = 2221945271100.

The previous prime is 2222012210207. The next prime is 2222012210237. The reversal of 2222012210221 is 1220122102222.

2222012210221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2222012210221 - 2¹⁵ = 2222012177453 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 (2222012210321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33419745 + ... + 33486166.

It is an arithmetic number, because the mean of its divisors is an integer number (555519787336).

Almost surely, 2^{2222012210221} is an apocalyptic number.

It is an amenable number.

2222012210221 is a deficient number, since it is larger than the sum of its proper divisors (66939123).

2222012210221 is an equidigital number, since it uses as much as digits as its factorization.

2222012210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66939122.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 2222012210221 its reverse (1220122102222), we get a palindrome (3442134312443).

The spelling of 2222012210221 in words is "two trillion, two hundred twenty-two billion, twelve million, two hundred ten thousand, two hundred twenty-one".