10010120020121 has 6 divisors (see below), whose sum is σ = 10839360732030. Its totient is φ = 9240110787648.

The previous prime is 10010120020111. The next prime is 10010120020129. The reversal of 10010120020121 is 12102002101001.

It can be written as a sum of positive squares in 3 ways, for example, as 658144410121 + 9351975610000 = 811261^2 + 3058100^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10010120020121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10010120020129) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 29615739536 + ... + 29615739873.

It is an arithmetic number, because the mean of its divisors is an integer number (1806560122005).

Almost surely, 2^{10010120020121} is an apocalyptic number.

It is an amenable number.

10010120020121 is a deficient number, since it is larger than the sum of its proper divisors (829240711909).

10010120020121 is an equidigital number, since it uses as much as digits as its factorization.

10010120020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59231479435 (or 59231479422 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 10010120020121 its reverse (12102002101001), we get a palindrome (22112122121122).

The spelling of 10010120020121 in words is "ten trillion, ten billion, one hundred twenty million, twenty thousand, one hundred twenty-one".