10202012002021 has 4 divisors (see below), whose sum is σ = 11659442288032. Its totient is φ = 8744581716012.

The previous prime is 10202012001997. The next prime is 10202012002043. The reversal of 10202012002021 is 12020021020201.

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 10202012002021 - 2¹¹ = 10202011999973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10202012001992 and 10202012002010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10202012002421) 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 in 3 ways as a sum of consecutive naturals, for example, 728715142995 + ... + 728715143008.

It is an arithmetic number, because the mean of its divisors is an integer number (2914860572008).

Almost surely, 2^{10202012002021} is an apocalyptic number.

It is an amenable number.

10202012002021 is a deficient number, since it is larger than the sum of its proper divisors (1457430286011).

10202012002021 is an equidigital number, since it uses as much as digits as its factorization.

10202012002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1457430286010.

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

Adding to 10202012002021 its reverse (12020021020201), we get a palindrome (22222033022222).

The spelling of 10202012002021 in words is "ten trillion, two hundred two billion, twelve million, two thousand, twenty-one".