2011001002221 has 8 divisors (see below), whose sum is σ = 2681615976480. Its totient is φ = 1340526681392.

The previous prime is 2011001002193. The next prime is 2011001002271. The reversal of 2011001002221 is 1222001001102.

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 2011001002221 - 2⁵ = 2011001002189 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2011001002197 and 2011001002206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011001002271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35129991 + ... + 35187188.

It is an arithmetic number, because the mean of its divisors is an integer number (335201997060).

Almost surely, 2^{2011001002221} is an apocalyptic number.

It is an amenable number.

2011001002221 is a deficient number, since it is larger than the sum of its proper divisors (670614974259).

2011001002221 is an equidigital number, since it uses as much as digits as its factorization.

2011001002221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70326715.

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

Adding to 2011001002221 its reverse (1222001001102), we get a palindrome (3233002003323).

The spelling of 2011001002221 in words is "two trillion, eleven billion, one million, two thousand, two hundred twenty-one".