10121021120101 has 4 divisors (see below), whose sum is σ = 10367875293804. Its totient is φ = 9874166946400.

The previous prime is 10121021120087. The next prime is 10121021120137. The reversal of 10121021120101 is 10102112012101.

It is a happy number.

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 1087329648001 + 9033691472100 = 1042751^2 + 3005610^2 .

It is a cyclic number.

It is not a de Polignac number, because 10121021120101 - 2¹¹ = 10121021118053 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10121021120141) 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, 123427086790 + ... + 123427086871.

It is an arithmetic number, because the mean of its divisors is an integer number (2591968823451).

Almost surely, 2^{10121021120101} is an apocalyptic number.

It is an amenable number.

10121021120101 is a deficient number, since it is larger than the sum of its proper divisors (246854173703).

10121021120101 is an equidigital number, since it uses as much as digits as its factorization.

10121021120101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246854173702.

The product of its (nonzero) digits is 8, while the sum is 13.

Adding to 10121021120101 its reverse (10102112012101), we get a palindrome (20223133132202).

The spelling of 10121021120101 in words is "ten trillion, one hundred twenty-one billion, twenty-one million, one hundred twenty thousand, one hundred one".