1222012123 has 2 divisors, whose sum is σ = 1222012124. Its totient is φ = 1222012122.

The previous prime is 1222012091. The next prime is 1222012133. The reversal of 1222012123 is 3212102221.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (3212102221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222012123 - 2⁵ = 1222012091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1222012097 and 1222012106.

It is not a weakly prime, because it can be changed into another prime (1222012133) 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, 611006061 + 611006062.

It is an arithmetic number, because the mean of its divisors is an integer number (611006062).

Almost surely, 2^1222012123 is an apocalyptic number.

1222012123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222012123 is an equidigital number, since it uses as much as digits as its factorization.

1222012123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1222012123 is about 34957.2899836357. The cubic root of 1222012123 is about 1069.1168428090.

Adding to 1222012123 its reverse (3212102221), we get a palindrome (4434114344).

The spelling of 1222012123 in words is "one billion, two hundred twenty-two million, twelve thousand, one hundred twenty-three".