10012020202021 has 4 divisors (see below), whose sum is σ = 10059470534944. Its totient is φ = 9964569869100.

The previous prime is 10012020202007. The next prime is 10012020202027. The reversal of 10012020202021 is 12020202021001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 10012020202021 - 2⁷ = 10012020201893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012020201992 and 10012020202010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012020202027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23725166145 + ... + 23725166566.

It is an arithmetic number, because the mean of its divisors is an integer number (2514867633736).

Almost surely, 2^{10012020202021} is an apocalyptic number.

It is an amenable number.

10012020202021 is a deficient number, since it is larger than the sum of its proper divisors (47450332923).

10012020202021 is an equidigital number, since it uses as much as digits as its factorization.

10012020202021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47450332922.

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

Adding to 10012020202021 its reverse (12020202021001), we get a palindrome (22032222223022).

The spelling of 10012020202021 in words is "ten trillion, twelve billion, twenty million, two hundred two thousand, twenty-one".