10012002111021 has 4 divisors (see below), whose sum is σ = 13349336148032. Its totient is φ = 6674668074012.

The previous prime is 10012002111011. The next prime is 10012002111029. The reversal of 10012002111021 is 12011120021001.

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 not a de Polignac number, because 10012002111021 - 2⁷ = 10012002110893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10012002110988 and 10012002111006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10012002111029) 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, 1668667018501 + ... + 1668667018506.

It is an arithmetic number, because the mean of its divisors is an integer number (3337334037008).

Almost surely, 2^{10012002111021} is an apocalyptic number.

It is an amenable number.

10012002111021 is a deficient number, since it is larger than the sum of its proper divisors (3337334037011).

10012002111021 is an equidigital number, since it uses as much as digits as its factorization.

10012002111021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337334037010.

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 10012002111021 its reverse (12011120021001), we get a palindrome (22023122132022).

The spelling of 10012002111021 in words is "ten trillion, twelve billion, two million, one hundred eleven thousand, twenty-one".