1222423111201 has 2 divisors, whose sum is σ = 1222423111202. Its totient is φ = 1222423111200.

The previous prime is 1222423111187. The next prime is 1222423111223. The reversal of 1222423111201 is 1021113242221.

It is an a-pointer prime, because the next prime (1222423111223) can be obtained adding 1222423111201 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1222017491601 + 405619600 = 1105449^2 + 20140^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222423111201 - 2¹¹ = 1222423109153 is a prime.

It is not a weakly prime, because it can be changed into another prime (1222423171201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611211555600 + 611211555601.

It is an arithmetic number, because the mean of its divisors is an integer number (611211555601).

Almost surely, 2^{1222423111201} is an apocalyptic number.

It is an amenable number.

1222423111201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222423111201 is an equidigital number, since it uses as much as digits as its factorization.

1222423111201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 22.

Adding to 1222423111201 its reverse (1021113242221), we get a palindrome (2243536353422).

The spelling of 1222423111201 in words is "one trillion, two hundred twenty-two billion, four hundred twenty-three million, one hundred eleven thousand, two hundred one".