10001200201221 has 32 divisors (see below), whose sum is σ = 14358814986240. Its totient is φ = 6172066776384.

The previous prime is 10001200201207. The next prime is 10001200201229. The reversal of 10001200201221 is 12210200210001.

It is not a de Polignac number, because 10001200201221 - 2²² = 10001196006917 is a prime.

It is a super-3 number, since 3×10001200201221³ (a number of 40 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 10001200201197 and 10001200201206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001200201229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1402785 + ... + 4687238.

It is an arithmetic number, because the mean of its divisors is an integer number (448712968320).

Almost surely, 2^{10001200201221} is an apocalyptic number.

It is an amenable number.

10001200201221 is a deficient number, since it is larger than the sum of its proper divisors (4357614785019).

10001200201221 is a wasteful number, since it uses less digits than its factorization.

10001200201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6090705.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10001200201221 its reverse (12210200210001), we get a palindrome (22211400411222).

The spelling of 10001200201221 in words is "ten trillion, one billion, two hundred million, two hundred one thousand, two hundred twenty-one".