10021199871029 has 2 divisors, whose sum is σ = 10021199871030. Its totient is φ = 10021199871028.

The previous prime is 10021199871019. The next prime is 10021199871031. The reversal of 10021199871029 is 92017899112001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6362491670404 + 3658708200625 = 2522398^2 + 1912775^2 .

It is a cyclic number.

It is not a de Polignac number, because 10021199871029 - 2¹⁶ = 10021199805493 is a prime.

It is a super-2 number, since 2×10021199871029² (a number of 27 digits) contains 22 as substring.

Together with 10021199871031, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10021199871019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5010599935514 + 5010599935515.

It is an arithmetic number, because the mean of its divisors is an integer number (5010599935515).

Almost surely, 2^{10021199871029} is an apocalyptic number.

It is an amenable number.

10021199871029 is a deficient number, since it is larger than the sum of its proper divisors (1).

10021199871029 is an equidigital number, since it uses as much as digits as its factorization.

10021199871029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 163296, while the sum is 50.

The spelling of 10021199871029 in words is "ten trillion, twenty-one billion, one hundred ninety-nine million, eight hundred seventy-one thousand, twenty-nine".