20010012000221 has 8 divisors (see below), whose sum is σ = 20098909712640. Its totient is φ = 19921311183312.

The previous prime is 20010012000211. The next prime is 20010012000239. The reversal of 20010012000221 is 12200021001002.

It is a happy number.

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 20010012000221 - 2²⁶ = 20009944891357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010012000211) 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, 49020170 + ... + 49426683.

It is an arithmetic number, because the mean of its divisors is an integer number (2512363714080).

Almost surely, 2^{20010012000221} is an apocalyptic number.

It is an amenable number.

20010012000221 is a deficient number, since it is larger than the sum of its proper divisors (88897712419).

20010012000221 is an equidigital number, since it uses as much as digits as its factorization.

20010012000221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98447755.

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

Adding to 20010012000221 its reverse (12200021001002), we get a palindrome (32210033001223).

The spelling of 20010012000221 in words is "twenty trillion, ten billion, twelve million, two hundred twenty-one", and thus it is an aban number.