20210010121229 has 2 divisors, whose sum is σ = 20210010121230. Its totient is φ = 20210010121228.

The previous prime is 20210010121177. The next prime is 20210010121247. The reversal of 20210010121229 is 92212101001202.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10585899945604 + 9624110175625 = 3253598^2 + 3102275^2 .

It is a cyclic number.

It is not a de Polignac number, because 20210010121229 - 2³² = 20205715153933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20210010120229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10105005060614 + 10105005060615.

It is an arithmetic number, because the mean of its divisors is an integer number (10105005060615).

Almost surely, 2^{20210010121229} is an apocalyptic number.

It is an amenable number.

20210010121229 is a deficient number, since it is larger than the sum of its proper divisors (1).

20210010121229 is an equidigital number, since it uses as much as digits as its factorization.

20210010121229 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 20210010121229 in words is "twenty trillion, two hundred ten billion, ten million, one hundred twenty-one thousand, two hundred twenty-nine".