1212222022129 has 2 divisors, whose sum is σ = 1212222022130. Its totient is φ = 1212222022128.

The previous prime is 1212222022079. The next prime is 1212222022147. The reversal of 1212222022129 is 9212202222121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1212167970225 + 54051904 = 1100985^2 + 7352^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212222022129 - 2¹⁷ = 1212221891057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212222022097 and 1212222022106.

It is not a weakly prime, because it can be changed into another prime (1212222022229) 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, 606111011064 + 606111011065.

It is an arithmetic number, because the mean of its divisors is an integer number (606111011065).

Almost surely, 2^{1212222022129} is an apocalyptic number.

It is an amenable number.

1212222022129 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212222022129 is an equidigital number, since it uses as much as digits as its factorization.

1212222022129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 28.

The spelling of 1212222022129 in words is "one trillion, two hundred twelve billion, two hundred twenty-two million, twenty-two thousand, one hundred twenty-nine".