21030132200121 has 12 divisors (see below), whose sum is σ = 33138390133680. Its totient is φ = 12745534666680.

The previous prime is 21030132200107. The next prime is 21030132200171. The reversal of 21030132200121 is 12100223103012.

21030132200121 is a `hidden beast` number, since 2 + 10 + 301 + 32 + 200 + 121 = 666.

It is not a de Polignac number, because 21030132200121 - 2⁵ = 21030132200089 is a prime.

It is a super-2 number, since 2×21030132200121² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21030132200094 and 21030132200103.

It is not an unprimeable number, because it can be changed into a prime (21030132200171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106212788791 + ... + 106212788988.

It is an arithmetic number, because the mean of its divisors is an integer number (2761532511140).

Almost surely, 2^{21030132200121} is an apocalyptic number.

It is an amenable number.

21030132200121 is a deficient number, since it is larger than the sum of its proper divisors (12108257933559).

21030132200121 is a wasteful number, since it uses less digits than its factorization.

21030132200121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212425577796 (or 212425577793 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21030132200121 its reverse (12100223103012), we get a palindrome (33130355303133).

The spelling of 21030132200121 in words is "twenty-one trillion, thirty billion, one hundred thirty-two million, two hundred thousand, one hundred twenty-one".