2001200002221 has 8 divisors (see below), whose sum is σ = 3049447622464. Its totient is φ = 1143542858400.

The previous prime is 2001200002199. The next prime is 2001200002223. The reversal of 2001200002221 is 1222000021002.

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

It is not a de Polignac number, because 2001200002221 - 2⁹ = 2001200001709 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2001200002197 and 2001200002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2001200002223) 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, 47647619080 + ... + 47647619121.

It is an arithmetic number, because the mean of its divisors is an integer number (381180952808).

Almost surely, 2^{2001200002221} is an apocalyptic number.

2001200002221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2001200002221 is a deficient number, since it is larger than the sum of its proper divisors (1048247620243).

2001200002221 is an equidigital number, since it uses as much as digits as its factorization.

2001200002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95295238211.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 2001200002221 its reverse (1222000021002), we get a palindrome (3223200023223).

The spelling of 2001200002221 in words is "two trillion, one billion, two hundred million, two thousand, two hundred twenty-one".