10121010200021 has 8 divisors (see below), whose sum is σ = 11566994341824. Its totient is φ = 8675057443680.

The previous prime is 10121010199981. The next prime is 10121010200033. The reversal of 10121010200021 is 12000201012101.

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 10121010200021 - 2³⁸ = 9846132293077 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121010199975 and 10121010200011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121010220021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7151240 + ... + 8448801.

It is an arithmetic number, because the mean of its divisors is an integer number (1445874292728).

Almost surely, 2^{10121010200021} is an apocalyptic number.

It is an amenable number.

10121010200021 is a deficient number, since it is larger than the sum of its proper divisors (1445984141803).

10121010200021 is an equidigital number, since it uses as much as digits as its factorization.

10121010200021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15692731.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10121010200021 its reverse (12000201012101), we get a palindrome (22121211212122).

The spelling of 10121010200021 in words is "ten trillion, one hundred twenty-one billion, ten million, two hundred thousand, twenty-one".