20002010011221 has 8 divisors (see below), whose sum is σ = 30479253350464. Its totient is φ = 11429720006400.

The previous prime is 20002010011219. The next prime is 20002010011229. The reversal of 20002010011221 is 12211001020002.

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

It is not a de Polignac number, because 20002010011221 - 2¹ = 20002010011219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002010011197 and 20002010011206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002010011229) 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, 476238333580 + ... + 476238333621.

It is an arithmetic number, because the mean of its divisors is an integer number (3809906668808).

Almost surely, 2^{20002010011221} is an apocalyptic number.

20002010011221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20002010011221 is a deficient number, since it is larger than the sum of its proper divisors (10477243339243).

20002010011221 is an equidigital number, since it uses as much as digits as its factorization.

20002010011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 952476667211.

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

Adding to 20002010011221 its reverse (12211001020002), we get a palindrome (32213011031223).

The spelling of 20002010011221 in words is "twenty trillion, two billion, ten million, eleven thousand, two hundred twenty-one".