10202020212049 has 2 divisors, whose sum is σ = 10202020212050. Its totient is φ = 10202020212048.

The previous prime is 10202020211987. The next prime is 10202020212067. The reversal of 10202020212049 is 94021202020201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7881455456449 + 2320564755600 = 2807393^2 + 1523340^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10202020212049 is a prime.

It is not a weakly prime, because it can be changed into another prime (10202020212089) 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, 5101010106024 + 5101010106025.

It is an arithmetic number, because the mean of its divisors is an integer number (5101010106025).

Almost surely, 2^{10202020212049} is an apocalyptic number.

It is an amenable number.

10202020212049 is a deficient number, since it is larger than the sum of its proper divisors (1).

10202020212049 is an equidigital number, since it uses as much as digits as its factorization.

10202020212049 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 25.

The spelling of 10202020212049 in words is "ten trillion, two hundred two billion, twenty million, two hundred twelve thousand, forty-nine".