2011210100221 has 8 divisors (see below), whose sum is σ = 2327621093120. Its totient is φ = 1702072923408.

The previous prime is 2011210100183. The next prime is 2011210100227. The reversal of 2011210100221 is 1220010121102.

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 2011210100221 - 2¹¹ = 2011210098173 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 (2011210100227) 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, 1818453426 + ... + 1818454531.

It is an arithmetic number, because the mean of its divisors is an integer number (290952636640).

Almost surely, 2^{2011210100221} is an apocalyptic number.

It is an amenable number.

2011210100221 is a deficient number, since it is larger than the sum of its proper divisors (316410992899).

2011210100221 is an equidigital number, since it uses as much as digits as its factorization.

2011210100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3636908043.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2011210100221 its reverse (1220010121102), we get a palindrome (3231220221323).

The spelling of 2011210100221 in words is "two trillion, eleven billion, two hundred ten million, one hundred thousand, two hundred twenty-one".