1212102042029 has 2 divisors, whose sum is σ = 1212102042030. Its totient is φ = 1212102042028.

The previous prime is 1212102042007. The next prime is 1212102042043. The reversal of 1212102042029 is 9202402012121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 700158930025 + 511943112004 = 836755^2 + 715502^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212102042029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212102041989 and 1212102042007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212102047029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606051021014 + 606051021015.

It is an arithmetic number, because the mean of its divisors is an integer number (606051021015).

Almost surely, 2^{1212102042029} is an apocalyptic number.

It is an amenable number.

1212102042029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212102042029 is an equidigital number, since it uses as much as digits as its factorization.

1212102042029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 26.

The spelling of 1212102042029 in words is "one trillion, two hundred twelve billion, one hundred two million, forty-two thousand, twenty-nine".