10201121021021 has 64 divisors (see below), whose sum is σ = 12809589972480. Its totient is φ = 7924881162240.

The previous prime is 10201121020997. The next prime is 10201121021057. The reversal of 10201121021021 is 12012012110201.

It is not a de Polignac number, because 10201121021021 - 2²² = 10201116826717 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10201121020987 and 10201121021005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10201121021521) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 179338241 + ... + 179395113.

It is an arithmetic number, because the mean of its divisors is an integer number (200149843320).

Almost surely, 2^{10201121021021} is an apocalyptic number.

It is an amenable number.

10201121021021 is a deficient number, since it is larger than the sum of its proper divisors (2608468951459).

10201121021021 is a wasteful number, since it uses less digits than its factorization.

10201121021021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57414.

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 10201121021021 its reverse (12012012110201), we get a palindrome (22213133131222).

The spelling of 10201121021021 in words is "ten trillion, two hundred one billion, one hundred twenty-one million, twenty-one thousand, twenty-one".