10121010120021 has 8 divisors (see below), whose sum is σ = 14204926484320. Its totient is φ = 6392216917872.

The previous prime is 10121010119921. The next prime is 10121010120061. The reversal of 10121010120021 is 12002101012101.

10121010120021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 10121010120021 - 2¹⁸ = 10121009857877 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121010119979 and 10121010120006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121010120061) 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, 88780790470 + ... + 88780790583.

It is an arithmetic number, because the mean of its divisors is an integer number (1775615810540).

Almost surely, 2^{10121010120021} is an apocalyptic number.

It is an amenable number.

10121010120021 is a deficient number, since it is larger than the sum of its proper divisors (4083916364299).

10121010120021 is a wasteful number, since it uses less digits than its factorization.

10121010120021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177561581075.

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

Adding to 10121010120021 its reverse (12002101012101), we get a palindrome (22123111132122).

The spelling of 10121010120021 in words is "ten trillion, one hundred twenty-one billion, ten million, one hundred twenty thousand, twenty-one".