122220222011 has 2 divisors, whose sum is σ = 122220222012. Its totient is φ = 122220222010.

The previous prime is 122220222001. The next prime is 122220222037. The reversal of 122220222011 is 110222022221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (110222022221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 122220222011 - 2⁶ = 122220221947 is a prime.

It is not a weakly prime, because it can be changed into another prime (122220222001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110111005 + 61110111006.

It is an arithmetic number, because the mean of its divisors is an integer number (61110111006).

Almost surely, 2^122220222011 is an apocalyptic number.

122220222011 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220222011 is an equidigital number, since it uses as much as digits as its factorization.

122220222011 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 122220222011 its reverse (110222022221), we get a palindrome (232442244232).

The spelling of 122220222011 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred twenty-two thousand, eleven".