10001001202221 has 8 divisors (see below), whose sum is σ = 13914436455360. Its totient is φ = 6377450041952.

The previous prime is 10001001202207. The next prime is 10001001202277. The reversal of 10001001202221 is 12220210010001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10001001202221 - 2¹⁴ = 10001001185837 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10001001202197 and 10001001202206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001001202321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 72471023136 + ... + 72471023273.

It is an arithmetic number, because the mean of its divisors is an integer number (1739304556920).

Almost surely, 2^{10001001202221} is an apocalyptic number.

It is an amenable number.

10001001202221 is a deficient number, since it is larger than the sum of its proper divisors (3913435253139).

10001001202221 is a wasteful number, since it uses less digits than its factorization.

10001001202221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144942046435.

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

Adding to 10001001202221 its reverse (12220210010001), we get a palindrome (22221211212222).

The spelling of 10001001202221 in words is "ten trillion, one billion, one million, two hundred two thousand, two hundred twenty-one".