12100020029 has 2 divisors, whose sum is σ = 12100020030. Its totient is φ = 12100020028.

The previous prime is 12100019947. The next prime is 12100020047. The reversal of 12100020029 is 92002000121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11465483929 + 634536100 = 107077^2 + 25190^2 .

It is a cyclic number.

It is not a de Polignac number, because 12100020029 - 2²⁰ = 12098971453 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12100019989 and 12100020016.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12100023029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050010014 + 6050010015.

It is an arithmetic number, because the mean of its divisors is an integer number (6050010015).

Almost surely, 2^12100020029 is an apocalyptic number.

It is an amenable number.

12100020029 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100020029 is an equidigital number, since it uses as much as digits as its factorization.

12100020029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

The spelling of 12100020029 in words is "twelve billion, one hundred million, twenty thousand, twenty-nine".