10020011020121 has 4 divisors (see below), whose sum is σ = 10547380021200. Its totient is φ = 9492642019044.

The previous prime is 10020011020073. The next prime is 10020011020139. The reversal of 10020011020121 is 12102011002001.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10020011020121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10020011020141) 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, 263684500511 + ... + 263684500548.

It is an arithmetic number, because the mean of its divisors is an integer number (2636845005300).

Almost surely, 2^{10020011020121} is an apocalyptic number.

It is an amenable number.

10020011020121 is a deficient number, since it is larger than the sum of its proper divisors (527369001079).

10020011020121 is an equidigital number, since it uses as much as digits as its factorization.

10020011020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527369001078.

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

Adding to 10020011020121 its reverse (12102011002001), we get a palindrome (22122022022122).

The spelling of 10020011020121 in words is "ten trillion, twenty billion, eleven million, twenty thousand, one hundred twenty-one".