22120222211 has 2 divisors, whose sum is σ = 22120222212. Its totient is φ = 22120222210.

The previous prime is 22120222181. The next prime is 22120222321. The reversal of 22120222211 is 11222202122.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22120222211 - 2¹⁴ = 22120205827 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 22120222211.

It is not a weakly prime, because it can be changed into another prime (22120222511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11060111105 + 11060111106.

It is an arithmetic number, because the mean of its divisors is an integer number (11060111106).

Almost surely, 2^22120222211 is an apocalyptic number.

22120222211 is a deficient number, since it is larger than the sum of its proper divisors (1).

22120222211 is an equidigital number, since it uses as much as digits as its factorization.

22120222211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 22120222211 its reverse (11222202122), we get a palindrome (33342424333).

The spelling of 22120222211 in words is "twenty-two billion, one hundred twenty million, two hundred twenty-two thousand, two hundred eleven".