100012020202021 has 8 divisors (see below), whose sum is σ = 100320052656600. Its totient is φ = 99704110405632.

The previous prime is 100012020202019. The next prime is 100012020202027. The reversal of 100012020202021 is 120202020210001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 42830611140100 + 57181409061921 = 6544510^2 + 7561839^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 100012020202021 - 2¹ = 100012020202019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100012020201992 and 100012020202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100012020202027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29031160 + ... + 32292913.

It is an arithmetic number, because the mean of its divisors is an integer number (12540006582075).

Almost surely, 2^{100012020202021} is an apocalyptic number.

It is an amenable number.

100012020202021 is a deficient number, since it is larger than the sum of its proper divisors (308032454579).

100012020202021 is an equidigital number, since it uses as much as digits as its factorization.

100012020202021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61329095.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 100012020202021 its reverse (120202020210001), we get a palindrome (220214040412022).

The spelling of 100012020202021 in words is "one hundred trillion, twelve billion, twenty million, two hundred two thousand, twenty-one".