10021101020121 has 4 divisors (see below), whose sum is σ = 13361468026832. Its totient is φ = 6680734013412.

The previous prime is 10021101020113. The next prime is 10021101020143. The reversal of 10021101020121 is 12102010112001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 10021101020121 - 2³ = 10021101020113 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10021101020097 and 10021101020106.

It is not an unprimeable number, because it can be changed into a prime (10021101020171) 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, 1670183503351 + ... + 1670183503356.

It is an arithmetic number, because the mean of its divisors is an integer number (3340367006708).

Almost surely, 2^{10021101020121} is an apocalyptic number.

It is an amenable number.

10021101020121 is a deficient number, since it is larger than the sum of its proper divisors (3340367006711).

10021101020121 is an equidigital number, since it uses as much as digits as its factorization.

10021101020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3340367006710.

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

Adding to 10021101020121 its reverse (12102010112001), we get a palindrome (22123111132122).

The spelling of 10021101020121 in words is "ten trillion, twenty-one billion, one hundred one million, twenty thousand, one hundred twenty-one".