2021012202029 has 2 divisors, whose sum is σ = 2021012202030. Its totient is φ = 2021012202028.

The previous prime is 2021012201933. The next prime is 2021012202037. The reversal of 2021012202029 is 9202022101202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016394320004 + 4617882025 = 1419998^2 + 67955^2 .

It is a cyclic number.

It is not a de Polignac number, because 2021012202029 - 2⁸ = 2021012201773 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2021012201995 and 2021012202013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2021012205029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010506101014 + 1010506101015.

It is an arithmetic number, because the mean of its divisors is an integer number (1010506101015).

Almost surely, 2^{2021012202029} is an apocalyptic number.

It is an amenable number.

2021012202029 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021012202029 is an equidigital number, since it uses as much as digits as its factorization.

2021012202029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

The spelling of 2021012202029 in words is "two trillion, twenty-one billion, twelve million, two hundred two thousand, twenty-nine".