20110001000221 has 8 divisors (see below), whose sum is σ = 22083468890688. Its totient is φ = 18160747440000.

The previous prime is 20110001000209. The next prime is 20110001000303. The reversal of 20110001000221 is 12200010001102.

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

It is not a de Polignac number, because 20110001000221 - 2¹⁵ = 20110000967453 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110001000198 and 20110001000207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110001009221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6053580820 + ... + 6053584141.

It is an arithmetic number, because the mean of its divisors is an integer number (2760433611336).

Almost surely, 2^{20110001000221} is an apocalyptic number.

It is an amenable number.

20110001000221 is a deficient number, since it is larger than the sum of its proper divisors (1973467890467).

20110001000221 is a wasteful number, since it uses less digits than its factorization.

20110001000221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12107165123.

The product of its (nonzero) digits is 8, while the sum is 10.

Adding to 20110001000221 its reverse (12200010001102), we get a palindrome (32310011001323).

The spelling of 20110001000221 in words is "twenty trillion, one hundred ten billion, one million, two hundred twenty-one", and thus it is an aban number.