22120221222211 has 4 divisors (see below), whose sum is σ = 25280252825392. Its totient is φ = 18960189619032.

The previous prime is 22120221222173. The next prime is 22120221222221. The reversal of 22120221222211 is 11222212202122.

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 22120221222211 - 2²⁹ = 22119684351299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22120221222221) 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, 1580015801580 + ... + 1580015801593.

It is an arithmetic number, because the mean of its divisors is an integer number (6320063206348).

Almost surely, 2^{22120221222211} is an apocalyptic number.

22120221222211 is a deficient number, since it is larger than the sum of its proper divisors (3160031603181).

22120221222211 is an equidigital number, since it uses as much as digits as its factorization.

22120221222211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3160031603180.

The product of its (nonzero) digits is 512, while the sum is 22.

Adding to 22120221222211 its reverse (11222212202122), we get a palindrome (33342433424333).

The spelling of 22120221222211 in words is "twenty-two trillion, one hundred twenty billion, two hundred twenty-one million, two hundred twenty-two thousand, two hundred eleven".