1212020222123 has 2 divisors, whose sum is σ = 1212020222124. Its totient is φ = 1212020222122.

The previous prime is 1212020221999. The next prime is 1212020222129. The reversal of 1212020222123 is 3212220202121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1212020222123 - 2¹² = 1212020218027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212020222095 and 1212020222104.

It is not a weakly prime, because it can be changed into another prime (1212020222129) 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, 606010111061 + 606010111062.

It is an arithmetic number, because the mean of its divisors is an integer number (606010111062).

Almost surely, 2^{1212020222123} is an apocalyptic number.

1212020222123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212020222123 is an equidigital number, since it uses as much as digits as its factorization.

1212020222123 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 20.

Adding to 1212020222123 its reverse (3212220202121), we get a palindrome (4424240424244).

The spelling of 1212020222123 in words is "one trillion, two hundred twelve billion, twenty million, two hundred twenty-two thousand, one hundred twenty-three".