20112001000221 has 8 divisors (see below), whose sum is σ = 28878770667040. Its totient is φ = 12376616000112.

The previous prime is 20112001000207. The next prime is 20112001000261. The reversal of 20112001000221 is 12200010021102.

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

It is not a de Polignac number, because 20112001000221 - 2¹⁵ = 20112000967453 is a prime.

It is a super-3 number, since 3×20112001000221³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20112001000197 and 20112001000206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112001000261) 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, 257846166631 + ... + 257846166708.

It is an arithmetic number, because the mean of its divisors is an integer number (3609846333380).

Almost surely, 2^{20112001000221} is an apocalyptic number.

It is an amenable number.

20112001000221 is a deficient number, since it is larger than the sum of its proper divisors (8766769666819).

20112001000221 is a wasteful number, since it uses less digits than its factorization.

20112001000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515692333355.

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

Adding to 20112001000221 its reverse (12200010021102), we get a palindrome (32312011021323).

The spelling of 20112001000221 in words is "twenty trillion, one hundred twelve billion, one million, two hundred twenty-one", and thus it is an aban number.