20011000202201 has 16 divisors (see below), whose sum is σ = 21322645027200. Its totient is φ = 18714462428928.

The previous prime is 20011000202161. The next prime is 20011000202209. The reversal of 20011000202201 is 10220200011002.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 20011000202201 - 2¹⁴ = 20011000185817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20011000202209) 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, 1520891 + ... + 6506543.

It is an arithmetic number, because the mean of its divisors is an integer number (1332665314200).

Almost surely, 2^{20011000202201} is an apocalyptic number.

It is an amenable number.

20011000202201 is a deficient number, since it is larger than the sum of its proper divisors (1311644824999).

20011000202201 is a wasteful number, since it uses less digits than its factorization.

20011000202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4987168.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20011000202201 its reverse (10220200011002), we get a palindrome (30231200213203).

The spelling of 20011000202201 in words is "twenty trillion, eleven billion, two hundred two thousand, two hundred one".