22222021222211 has 4 divisors (see below), whose sum is σ = 22641304641552. Its totient is φ = 21802737802872.

The previous prime is 22222021222189. The next prime is 22222021222217. The reversal of 22222021222211 is 11222212022222.

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 22222021222211 - 2¹⁴ = 22222021205827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22222021222217) 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, 209641709591 + ... + 209641709696.

It is an arithmetic number, because the mean of its divisors is an integer number (5660326160388).

Almost surely, 2^{22222021222211} is an apocalyptic number.

22222021222211 is a deficient number, since it is larger than the sum of its proper divisors (419283419341).

22222021222211 is an equidigital number, since it uses as much as digits as its factorization.

22222021222211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419283419340.

The product of its (nonzero) digits is 1024, while the sum is 23.

Adding to 22222021222211 its reverse (11222212022222), we get a palindrome (33444233244433).

The spelling of 22222021222211 in words is "twenty-two trillion, two hundred twenty-two billion, twenty-one million, two hundred twenty-two thousand, two hundred eleven".