10121022112021 has 4 divisors (see below), whose sum is σ = 10121847050700. Its totient is φ = 10120197173344.

The previous prime is 10121022112013. The next prime is 10121022112037. The reversal of 10121022112021 is 12021122012101.

10121022112021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4329370749796 + 5791651362225 = 2080714^2 + 2406585^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121022112021 - 2³ = 10121022112013 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10121022111986 and 10121022112004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121022112001) 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, 412450936 + ... + 412475473.

It is an arithmetic number, because the mean of its divisors is an integer number (2530461762675).

Almost surely, 2^{10121022112021} is an apocalyptic number.

It is an amenable number.

10121022112021 is a deficient number, since it is larger than the sum of its proper divisors (824938679).

10121022112021 is an equidigital number, since it uses as much as digits as its factorization.

10121022112021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 824938678.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 10121022112021 its reverse (12021122012101), we get a palindrome (22142144124122).

The spelling of 10121022112021 in words is "ten trillion, one hundred twenty-one billion, twenty-two million, one hundred twelve thousand, twenty-one".