10201020202121 has 16 divisors (see below), whose sum is σ = 11883772621440. Its totient is φ = 8576251900800.

The previous prime is 10201020202069. The next prime is 10201020202169. The reversal of 10201020202121 is 12120202010201.

10201020202121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 10201020202121 - 2³⁸ = 9926142295177 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10201020202096 and 10201020202105.

It is not an unprimeable number, because it can be changed into a prime (10201020202171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 67347716 + ... + 67499013.

It is an arithmetic number, because the mean of its divisors is an integer number (742735788840).

Almost surely, 2^{10201020202121} is an apocalyptic number.

It is an amenable number.

10201020202121 is a deficient number, since it is larger than the sum of its proper divisors (1682752419319).

10201020202121 is a wasteful number, since it uses less digits than its factorization.

10201020202121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 134846944.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 10201020202121 its reverse (12120202010201), we get a palindrome (22321222212322).

The spelling of 10201020202121 in words is "ten trillion, two hundred one billion, twenty million, two hundred two thousand, one hundred twenty-one".