1212222130123 has 2 divisors, whose sum is σ = 1212222130124. Its totient is φ = 1212222130122.

The previous prime is 1212222130121. The next prime is 1212222130129. The reversal of 1212222130123 is 3210312222121.

It is a weak prime.

It is an emirp because it is prime and its reverse (3210312222121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1212222130123 - 2¹ = 1212222130121 is a prime.

Together with 1212222130121, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1212222130094 and 1212222130103.

It is not a weakly prime, because it can be changed into another prime (1212222130121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606111065061 + 606111065062.

It is an arithmetic number, because the mean of its divisors is an integer number (606111065062).

Almost surely, 2^{1212222130123} is an apocalyptic number.

1212222130123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212222130123 is an equidigital number, since it uses as much as digits as its factorization.

1212222130123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 1212222130123 its reverse (3210312222121), we get a palindrome (4422534352244).

The spelling of 1212222130123 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, one hundred thirty thousand, one hundred twenty-three".