10101101102021 has 4 divisors (see below), whose sum is σ = 10143014384844. Its totient is φ = 10059187819200.

The previous prime is 10101101102017. The next prime is 10101101102051. The reversal of 10101101102021 is 12020110110101.

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 4567837562500 + 5533263539521 = 2137250^2 + 2352289^2 .

It is a cyclic number.

It is not a de Polignac number, because 10101101102021 - 2² = 10101101102017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10101101101993 and 10101101102011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10101101102051) 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, 20956641050 + ... + 20956641531.

It is an arithmetic number, because the mean of its divisors is an integer number (2535753596211).

Almost surely, 2^{10101101102021} is an apocalyptic number.

It is an amenable number.

10101101102021 is a deficient number, since it is larger than the sum of its proper divisors (41913282823).

10101101102021 is an equidigital number, since it uses as much as digits as its factorization.

10101101102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41913282822.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 10101101102021 its reverse (12020110110101), we get a palindrome (22121211212122).

The spelling of 10101101102021 in words is "ten trillion, one hundred one billion, one hundred one million, one hundred two thousand, twenty-one".