20003221032029 has 2 divisors, whose sum is σ = 20003221032030. Its totient is φ = 20003221032028.

The previous prime is 20003221032023. The next prime is 20003221032061. The reversal of 20003221032029 is 92023012230002.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17941705135225 + 2061515896804 = 4235765^2 + 1435798^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20003221032029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20003221031989 and 20003221032007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20003221032023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001610516014 + 10001610516015.

It is an arithmetic number, because the mean of its divisors is an integer number (10001610516015).

Almost surely, 2^{20003221032029} is an apocalyptic number.

It is an amenable number.

20003221032029 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003221032029 is an equidigital number, since it uses as much as digits as its factorization.

20003221032029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 20003221032029 in words is "twenty trillion, three billion, two hundred twenty-one million, thirty-two thousand, twenty-nine".