10521021331101 has 16 divisors (see below), whose sum is σ = 14326602336000. Its totient is φ = 6864729465408.

The previous prime is 10521021331097. The next prime is 10521021331123. The reversal of 10521021331101 is 10113312012501.

It is not a de Polignac number, because 10521021331101 - 2² = 10521021331097 is a prime.

It is a super-2 number, since 2×10521021331101² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10521021331141) 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, 35518315 + ... + 35813303.

It is an arithmetic number, because the mean of its divisors is an integer number (895412646000).

Almost surely, 2^{10521021331101} is an apocalyptic number.

It is an amenable number.

10521021331101 is a deficient number, since it is larger than the sum of its proper divisors (3805581004899).

10521021331101 is a wasteful number, since it uses less digits than its factorization.

10521021331101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547988.

The product of its (nonzero) digits is 180, while the sum is 21.

Adding to 10521021331101 its reverse (10113312012501), we get a palindrome (20634333343602).

The spelling of 10521021331101 in words is "ten trillion, five hundred twenty-one billion, twenty-one million, three hundred thirty-one thousand, one hundred one".